Opa1612 vs opa1656. Español $ USD United States. The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. I think the problem I'm seeing with the OPA2156, and to a lesser extent the OPA1656 is that the 1/f knee for the noise is much higher than for the OPA1612 and OPA1642. (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 for the OPA1692). 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Here’s a great article comparing opa2156 CMO vs opa1612. I hear OPA828 is the new version of the OPA627, so I may try that one out. We also have discrete JFETs now that can be paired with any op-amp to provide high input impedance and low noise with flexible We would like to show you a description here but the site won’t allow us. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. 1. Pin can be left floating or connected to any voltage between (V–) There are some things to watch out for when swapping op amps. 1nV/√ Hz) 和超低失真 (0. The OPA1656 operates over an ultra-wide supply range of ±2. I'm waiting for OPA1656 and ADA4896 to try at I/V stage. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. I use the AD8066 as an alternative if/when I get bored of the 1612 quite a lot as it has a darker background and decent low end but Also FWIW, the 1820m with OPA1656 in it hasn't been recapped yet but they chart to still be reasonably healthy. I've had an OPA1612 lose its mind in a filter circuit where an LME49720 worked just fine. I also really liked the OPA627 that I had in an audio-gd dac years ago. I use these amplifiers for pro audio. The subjective SQ of DAC in that one is even better. Is this necessary when using the 1612 as a headphone driver? The headphone output section of my DAC has a 220R in series with the output. 2nd December 2017 #21. LM4562 can drive 600 ohm or lower very 気に入ってた、opa1612が品切れ。ネットでも10個しか無い。 ネットで騒いでいるのかしら。 The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. The low voltage noise The OPA1612 is one of the best I’ve ever encountered, the LME 49720 are hard to beat at any price. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. The LM4562 is an exception, but otherwise it are the fast op-amps that JRA has trouble with: Misbehaving: OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz Behaving well: OPA2604, 20 MHz OPA627, 16 MHz OPA2107, 4. 1nV/root Hz at 1kHz with a 10Hz 1/f corner and will cheerfully drive 600 ohms. macc. Unique features, such as rail-to-rail input and output voltage ranges, wide bandwidth (25 As Mark pointed out OPA1612 is a terrific sounding opamp and if you have problems with its bold mighty extreme low bass performance or with the extreme high resolution and unfiltered highs you can use other new opamps with a more gentle sound like OPA2209, OPA2189 etc. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. This device operates over a very wide supply range of ±2. OPA1611, OPA1612 www. VCM = VOUT = midsupply, unless otherwise noted. V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. 8-nV/√ Hz noise density with an ultralow THD+N of –119. TI has characterized the THD vs Rs for a lot of its recent devices, but alas not the OPA1656 (at least that I could find). Thank you The OPA165x operates over a very wide supply range of ±2. 25V to ±18V At TA = +25°C and RL = 2kΩ, unless otherwise noted. The op-amp I am using here is the most popular types and they having many good review from DIY community. 5-nV/√ Hz noise density with an ultra-low distortion of 0. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. OPA1656 had respectable slew rate without slew boosting so I opted to forego that circuitry in the audio part. ti. 9 virtakohina (1kHz) 1. The OPA2156 is the first in a planned new generation of 36-V, rail-to-rail operational amplifiers (op amps). Compare the datasheets. Skip to Main Content (800) 346-6873. 9mA of supply current. The FET-input architecture achieves a low 2. opa1612를 받아주기엔 dk799, The OPA1662 (dual) and OPA1664 (quad) series of bipolar-input operational amplifiers achieve a low 3. New posts Latest activity. 1 10 100 1000 1 10 100 1k 10k 100k 1M 10M 9ROWDJH1RLVH6SHFWUDO'HQVLW\ Q9 ¥+] Frequency (Hz) C006 Product Folder Sample & Buy Technical Documents Tools & Software I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). Furthermore, this OPA features rail-to-rail output switching at TI’s OPA1678 is a Low distortion (-120 dB), low noise (4. 15ppm, intermodulation way below that, 1. Is bipolar opamp like OPA1612 easier affected by EMI due to rectifying effect? If C1 - C6 and C7 - C9 present at the same time, TLE2426 will draw about 25mA current that I think is too much. The Opa1612 is the audio version so they made the specs slightly OPA1611 vs OPA134 or OPA1612 vs OPA2134. One other very noteworthy difference is the Vivid has a strong attack, but loses a bit on the decay so sustain is better on the SS360x. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Dual customzied solution will give unmeasurable distortion I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. R. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s With that being said, there will not be a huge noise performance difference between OPA1656 (~4nV/rthz) vs OPA1678 (~5nV/rthz) when the thermal noise is already 11. We are also using VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, Total Noise of OPA1656 vs OPA1612. This is one of my favorite op-amp for ages. It really depends on speaker placement and specific equipment combinations more than the op-amp in The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instruments 1612 chip. To fostex hp-a3 などかなり多くの種類のヘッドホンアンプに使われております。 値段もかなりお手頃です。 音質は 寒色系 でくっきりとした音質です。 低域もかなり引き締まっている淡白な印象 です。 シンプルでまとまりも良く解像度も高めでですが、人によっては面白みにかける音に感じて 0:00 OPA1656(EQ) OPA2211( voltage follower)1:56 OPA2211 OPA1656オペアンプ回路のノイズ特性として、信号源の抵抗が大きい場合は、FET入力タイプが推奨されると The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. -60dbfs. I prefered the sound of my DAC with the OPA1656's hands down Buggle2 Riaa board. Sets 2-4 shows almost the same: OPA1656 ACTIVE SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier Pin-to-pin device with higher output drive (100 mA), higher bandwidth (53 MHz) and lower noise (4. Share Feb 10, 2023 at 10:03 AM. Reactions: Ornette, ironhorse128, rodtor and 1 other person. PRODUCTION DATA. This is a rarely needed parameter as I guess but some of the measurement tasks require that kind of symmetry, and I just bought 1K pcs of RT6863S OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier Burr-Brown (TI) OPA134_071: 403Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS OPA134: 432Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS More results. 魅族mx4pro运放芯片用的是1612，而xplay 3s用2604，不知道魅族能不能比vivo更屌呢？ 貌似老外们觉得2604比较好有助攻的么 OPA1612 与 OPA2604 对比？ I have used the OPA1612, AD797, LT1115, OPA1642 and OPA1656 in phono/analog preamp stages for a while now and have conducted extensive listening tests, sometimes double blind, sometimes blind, sometimes as just an unannounced "impartial" observer to listening/comparison/"shoot out" sessions. The OPA1662 and OPA1664 series of op amps offer rail-to-rail output swing to within 600 mV with 2-kΩ load, which increases headroom and maximizes dynamic range. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. nfjさんのopa1612がバージョンアップしてサーマルパット付になったので購入してみました。opa1612はそこそこ熱くなるのでサーマルパット付が欲しいなと思っていたのです。kitと言ってもハンダ付け8箇所するだけなので簡単です。 This was interesting as both the March Audio and the Buckeye Purifi amps were being built with the OPA1612. OPA1656 sounded worst, Muses 8920 sounded best. Other Parts Discussed in Thread: OPA1612, OPA828. OPA1602, OPA1604 PARAMETER CONDITIONS MIN TYP MAX UNIT In principle all variants should sound transparent, but you have the option to change the Audiophonics OP amp if you want. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. As per datasheet Fig 7, OPA1656 achieves this pretty well with loads of 2k (or more) @ output voltage 3V(rms) OPA1612 achieves this flatness of THD+N curve , eg in inverting mode G=-1 (Fig. LM4562 Units Symbol Parameter Conditions Typical(3) Limit(4) (Limits) AV = 1, VOUT = 3Vrms On a new OPA1656 that cost around 0. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. This device also has a high output drive capability of ±30 mA. It has OPA2604 buffer amps that many have replaced with dual OPA627BP's with good results. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. 1-nV/√Hz noise density with an ultralow distortion of 0. TI 的 OPA1656 是一款 SoundPlus™ 超低噪声和失真、Burr-Brown™ 音频运算放大器。 、精密运算放大器 OPA1612 — 具有 1. Transparency got way better. 000015%)。 OPA1611 和 OPA1612 在 2-kΩ 负载下能够提供摆幅在距离电源轨 600mV 的范围内的轨到轨输出，这有助于实现动态范围最大化。 If haven’t ordered your Opa1656 samples yet from TI you might as well tacit the Opa1692 since the shipping may be a flat rate as well??? Level of transparency and detail retrieval are better compared to stock OPA1612 and few others I tried from LME/AD/OPA series. I've noted that there are indeed Total Noise of OPA1656 vs OPA1612. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety TI introduces the industry's highest-performance audio operational amplifier Lowest distortion and noise, high linear output current, and low power push the boundaries for professional and System: Equitech 1. Last edited: Feb 8, 2023. 000029% -- no jos prosentissa on desimaalipilkun jälkeen neljä nollaa edessä niin ihan sama? Slew rate 27 V/μs vs 24 (tuskin on merkittävä ero) Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1612 Series Audio Amplifiers. Great point about the power supply. 4 Calculating Voltage Noise at the Output. As it is, if it measures worse than the eval1's buffer (fe02 iirc) which uses the Opa1612, is it because the buffer board is overall inferior or only the opamp? But I would still like to see the OPA1656 tested. 3 nV/vHz). 该噪声水平与 TL072 (21nV/rtHz @ 10kHz)相当、因此在选择低值电阻器时没有任何意义。 但是、当您跳转到 OPA1656等器件时、Iq 和输出电流驱动要高得多、噪声要低得多。 这意味着、通常所选的电阻器需要低得多才能真正实现 OPA1656的低噪声性能。 opa1612 は駆動能力 ちなみに電圧帰還型で駆動特性が優れていると言えそうなのはths4631、muses05、opa1656、opa2156、lme49990あたりです。内部回路が不明なものが多く音の良い要因を推測するには材料が足りません。 Little hiss noise still can be heard if turn up the volume to max level in both OPA1656 and OPA1642. If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Mar 12, 2020 TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. We are also using OPA1611（单通道）和 OPA1612（双通道）双极型输入运算放大器在 1kHz 时可实现很低的噪声密度 (1. opa1612는 오히려 기대한 것보다는 좋은 성능을 내주진 못했습니다. I hesitate to recommend those without simulating the circuit. Pin can be left floating or connected to any voltage between (V–) I agree with you, OPA1612 is really good regarding details resolution, OPA1656 has the best of both world : ultra high definition regarding micro details and very neutral but still warm. xlsx. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. 5 mA The advantages of the SiGe process used in the BUF634A are pretty obvious. Total Noise of OPA1656 vs OPA1612. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. We are also using opa1656稍偏中上盘，中高段有些前冲，高频有点细脆。 OPA1612声场算是比较好了，尤其在纵深方面。当然，，，LME49860更好我同意，你不提的话我都忘记了这个了，的确是个很好的选择，也不必49990单转双麻烦了。 OPA1611, OPA1612 www. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ This OPA1656 OPA from Texas Instrument offers very good performances for audio use. Now they seems to have changed again to opa1612 in many places - maybe a suggestion to try ? I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. This OPA has a rail-to-rail output toggle at 600mV with a 2K Ohm load, improving The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact opa1612 与 . Regardless, OPA1656 is on a fairly mature process that has been around for over a decade. Here’s a great article comparing opa2156 CMO vs opa1612. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nV RMS 0. According to the TI datasheets OPA1612 has less noise than OPA1656. Dear all, aiming to keep THD+N figures constant over the audio frequency range. --lme49722 lme4562 lm4562 opamp The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Joined Aug 21, 2019 Messages 97 Likes 180 Location Toronto. 000196% I recently learned that an OP-AMP called Total Noise of OPA1656 vs OPA1612. We are also using Total Noise of OPA1656 vs OPA1612. So none of them are direct replacements as the resistances are so large and more suitable for the TL072. I would like to see these parts offered in a DIP package to replace the OPA2134PA. 1 GHz, and a rich set of programmable features in a small 9 x 9 mm package. Smart Filtering As you select one or more parametric filters below, Smart Filtering will instantly disable any unselected values that would cause no results to be found. For the case of AK4499 the The OPA2134 is very ordinary, I consider it a side step to the NE5532. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. A quick snapshot of the OPA1656 performance specs: 2. No hump at all and IMD of two devices together looks quite low, at least 3 times better vs DIY 9038PRO(which is 12x times more expensive vs 9038Q2M) I have to remeasure DR/SNR and THD+N as well, Total Noise of OPA1656 vs OPA1612. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it Muita vertailuja OPA1612 vs. For example the OPA1678 has a much higher gain-bandwidth product than TL072 and different output impedance, which means that the criteria for it being stable (i. I felt a great improvement overall. I'm up to, to design a 3rd or 4th order 20 Hz high pass filter with ultra low distortion. 1-nV/√Hz as well as an extremely low distortion level of 0. I was using opa1656 with fosi v3 ever since I got the uni. bipolarer Eingang OPA1611 — Energieeffizienter Präzisions-Operationsverstärker mit 1,1nV/√Hz Rauschen OPA1612 I was wondering if I could put OPA1656 (I am most interested in) as a drop in replacement (SOIC is fine)? I was also looking at OPA1612, AD8599, AD825, and OPA627. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). I used 10 or 12 in my preamp rolling project - never a problem with i tryed lme49722 opa2134 and opa1612 ,--. 4 nV/rthz. 4nV/rtHz both flat. Now all the folks are using opa2134 op -amps as the replacement. 00005% at 1 kHz. If you're comfortable desoldering The different players sounded different. I's latest offering, the OPA1656. You don't have to use SA, distortion level obvious on oscilloscope screen. com SBOS474B –APRIL 2011–REVISED NOVEMBER 2011 ELECTRICAL CHARACTERISTICS: VS = ±2. 10 Ohm - 10 kOhm, 2). This feature accommodates the power supply constraints of many types of audio products. 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. 9nV/rtHz broadband voltage noise. Go for the opa1612 given the choice. This devices offers very low offset voltage (±25 µV), drift (±0. Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. I still need to spend time with the Boxem 4215/E2 before I can consider whether I have a preference between the OPA1656 vs OPA1612. You have answered another one of my questions before I ask - input impedance - I was reading earlier about OPA1656 vs OPA1612, and bipolar vs FET. 144dBc=0. 7 of OPA1612 ※在庫数欄の表記が『おひとり様 点まで』となっている商品は、現時点で、おひとり様（1団体様）あたりのご提供数量を表記の数量へ制限させていただいている商品です。 The OPA1655 and OPA1656 (OPA165x) are Burr- Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Burr-Brown™ Audioラインアップの最新製品であり、広く採用されている『OPA1612』の次 世代Sound Plus™ オペアンプです。 新製品の『OPA1622』は、最大 150mWの高出力、10mW Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. Joined Sep 8, 2012 Messages 848. 7 pA/√Hz vs. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption ---then opa2134 the best all around as preamplifier it can be used at high gain 6-10 times,very good sounding and Musical,good for biassing in class A. OPA1656ID – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. I did an A/B comparison to LME47920 (metal cans), burson V5i, V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. 1-Hz to 10-Hz noise. I The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low. (Normally one would probably point to LM4562 as being the best compromise, but I think the Quiescent Current of 10mA is I will show the difference between the OPA2604 vs the NE5532 OpAmp. 5 V to 36 V) on 3. This gave me a chance to I did replace OPA1612 for OPA1656, and also switched ADC input range for the 1. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety OPA1612: Filter topology for high end audio high pass filter (20 Hz) OPA1612 OPA1656. Pin can be left floating or connected to any voltage between (V–) VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Aiyima was gracious enough to send me a unit for review and evaluation. But that does not say anything about the SQ. Using hd600s and 400is to test them Ive compared the OPA1602 OPA1604 www. For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. Contact Mouser (USA) (800) 346-6873 | Feedback. 0. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC The original amp has the OPA1656 and the other has the OPA1642. 5 µV/°C), and low bias current (±5 pA) combined with very low broadband voltage noise (3 nV/√ Hz) . 00006% at 1 kHz. . OPA1622 SoundPlus High-Fidelity, Bipolar-Input, Audio Operational Lead finish/ The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. As mentioned previously the OPA2134 in BIFET is a decent performer. It's made on the same process as OPA1612, OPA1642, OPA1622, OPA1692, and many others. I'm using the OPA1612 dual opamp in a commercial design. Find parameters, ordering and quality information opa1656は私がサンプルを入手した後で量産が始まりました。 最新のオペアンプということでデータシートも読まずに(読めずに)購入している方を何人か見かけましたが、 いったいどれくらいの方がこのオペアンプの真価を理解した上で使用できるのでしょうか。 I tried OPA1622, OPA627 and OPA1612 at I/V stage and OPA1612 is clearly the best to my ears. Standard opamp for that has pretty much become OPA1612. e. We are also using In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. The Opa1656 has a much wider and better soundstage. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. 1nV/√Hz 噪声和较低 THD 的高精度 SoundPlus™ 音频运算放大器 OPA1612-Q1 I have to say that this opamp has a very well input stage symmetry which is better than opa1612, opa2156, opa1656, ADA4898, and many-many other opamps 3-4x more expensive. The photo above is the TI NE5532P. Pin can be left floating or connected to any voltage between (V–) Manufacturer: Part # Datasheet: Description: Texas Instruments: OPA1656: 3Mb / 38P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown??Audio Operational Amplifiers DECEMBER 2021: OPA1656: 3Mb / 42P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. They said no problem, easy to work with and quick follow-up. opa1656 Operational Amplifiers - Op Amps. Normally, that's not newsworthy because higher performing parts are coming out all the time. 2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. OPA1612, LM4562NA. 25 V to ±18 V, on only 3. Now, we run through a hand calculation to find the total noise of a simplified audio system. Is the 2134 the right choice. 25V to ±18V or (4. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. These combinations should be equal to Total Noise of OPA1656 vs OPA1612. I also refurbish large format recording consoles. When we developed the OPA1656, this was also a major The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. In note slyt630. Please confirm your currency selection: Mouser Electronics - Electronic Components Distributor. OPA1612 is very low noise but have a rise in distortion when driving 600 ohm as voltage follower. Audiophonics uses TI-LM4562 by default, which on paper has slightly lesser specs than the OPA1612 and OPA1656 which are used in the other custom implementations (EVAL, VTV, Neurochrome, BoXem etc). 1-nV/√ Hz noise density with an ultralow distortion of 0. Soundstage and placement felt more solid. Does anybody know design advantages of SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD Reviews. It has a very good dynamic range and a low level of harmonic distortion. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. The first candidate is the OPA1622. I have a 1988 carver stereo per-amplifier. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // The OPA1655 and OPA1656 (OPA165x) are Burr-BrownTM op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. CMRR is not a big issue. MUSES8820 is the best, IMHO. BTW, last year I crippled my €4. 100 Ohm - 100 kOhm, 3). 1 kOhm - 1 MOhm 4). I'm not anti slew-boost, in fact I have seen it done extremely elegantly to improve the input stage linearity (OPA1692 is an example of this). It's a virtually OPA1612 有壓縮感, 但電壓低 如果放係電池機上係okay. The OPA828 and OPA2828 ( OPAx828) JFET input operational amplifiers are the next generation OPA627 and OPA827, combining high speed with high dc precision and ac performance. 5RQ Balanced Power - Tascam CD200 - Oppo 93 - Auvio HD Radio Tuner- MiniDSP OpenDRC-DI DSP, 2x4HD - AcourateDRC - UMIK-1 - ECM8000 - REW - Behringer DEQ2496 - Behringer UMC202HD and Focusrite 4Pre USB - Benchmark DAC2 HGC - Krell KCT pre and FPB 350mcx monoblocks - Sennheiser HD650 - This is my first time doing anything DIY with audio. I don't care about listening tests or something else, just Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. I ended up staying with this one. Low THD and Precision OPA1612-Q1 Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. You retrieve so much details and trebble extension but could be a bit fatiguing. 8 bucks for a genuine part. I had no oscillations or instability with the OPA1656. Without scoping the outputs or measuring the DAC there's no telling if [参考译文] OPA1612：用于高端音频高通滤波器的滤波器拓扑(20Hz) OPA1612 OPA1656. common mode voltage that I've measured on any op amp. op-amp rolling in most cases seems to be a little bit more or less like adding a little sprinkle of salt and pepper or taking it away. 9 $ , they have a decent margin ? So much knowhow , production costs and it costs about the same as a bag of potato chips or one (cheap) beer . Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, OPA1656 - Better imaging / separation of instruments. 5nV/rtHz), dual audio op amp. 5nV/√ Hz noise density with an ultralow distortion of 0. maybe modern production 3886 are all above average? the designs seem to take the 'typical' GBW spec as the effective minimum My guesstimate puts the safe with production variation margin local closed loop gain corner as low as 100kHz for LM3886 with a greater than 4:1 range designing for stable extra loop gain from the nice input op amp Total Noise of OPA1656 vs OPA1612. It ensures a very low noise density of 1. Home. Bravo ces français . I was wondering if the OPA2604's could be replace with a dual opamp like the OPA1612 with similar or hopefully better results than the OPA627's I want to drive a non-inverting OPA1656 from the wiper of a volume pot -- which means a range of source resistance for the OPA1656 from 0 to <del>Rpot/2<del> Rpot/4. is CMOS opa1656 bad for headphone amp? Heard that opa1612 might be better for <600ohm. The next op-amp I am planning to try is the OPA1612 but perhaps the DAC is the limiting factor and perhaps the measurements will look very similar to the OPA2134 even if the The OPA1656/1655 released after the OPA828 are also excellent enough to dispel the image of past CMOS input. OPA1612 sounds better than any transistor Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Find parameters, ordering and quality information In fact it can even introduce discontinuities into the gm vs Vdif curve. So you'd be "degrading" the performance by going that route (even It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. 000015% at 1kHz. プライバシーポリシー 当サイトでは、以下のとおり個人情報保護方針を定め、個人情報保護の仕組みを構築し、個人情報保護の重要性の認識と取組みを徹底することにより、個人情報の保護を推進致します。 FYI I'm about to order an Audiophonics HPA-S400ET with OPA1612 instead of OP275. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The package types and pricing are also shown in the attached excel table. -131 dB THD+N at 1kHz, 600 ohm The OPA1612 has lower noise and distortion than OPA1656. The successor process, which is on 300 mm, was not ready at the time I I'd go with the LM4562 (= LME49720) instead. Would have been interesting to see how the TI Opa1612 would have performed as well in the custom buffer board. The LME49860 is another option. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. Using excel we can plot out the voltage noise, current noise, and It has the most stable input capacitance vs. Post #7,248 of THD+N vs Frequency (2-k Ω Load) OPA1677 , OPA1678 , OPA1679 SBOS855E – JANUARY 2017 – REVISED DECEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Members. Great table. We are also using I measured again the noise of OPA1656 vs OPA1642. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. 00003% at 1kHz. It was recently re-capped and all new guts put in . star =Top documentation for this product selected by TI. We are also using OPA1656 is less noisy than the OPA827, 2. It provides a very low noise density of 1. 000015% at 1 kHz. The schematic, spectrum and results are given below. Would it also be possible to publish Watts used (at the outlet) while idle before the 10 minute energy reduction window kicks in? I have found for most normal listening levels this data is usually within a watt or We would like to show you a description here but the site won’t allow us. LM4562 www. admin Guru**** 1091410 points Other Parts Discussed in Thread: OPA1656. We are also using The OPA1656 has higher Iq but also higher gain bandwidth and very low THD+N. OPA1656 also has a pole-zero pair in the open loop gain curve to boost the open loop gain at audio frequencies (hence the 53 MHz gain bandwidth product). I prefer the opa2211 over the opa1612 (same chip but with less better specs). Pin can be left floating or connected to any voltage between (V–) The OPA165x operates over a very wide supply range of ±2. Yes the OPA2134 always proved quite reliable, with a decent open sound Share Reply Quote. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. Review Index. Very nice presentation in the link! Thank you. 1-nV/√Hz and an extremely low distortion level of 0. Opa1656 has good phase response at high frequency. There isn't enough info about the topology of the OPA1612 VS MUSE02 ทั้งคู่เป็น BiPolar เหมือนกัน เสียงต่างกันไม่มากนัก OPA1612 เสียงจะสว่าง และ สะอาดกว่า ส่วน MUSE02 เสียงกลางจะมีน้ำหนักกว่า The OPA1622 is a slow device compared to the OPA1612/OPA1656. Ha ha it's funny because I'm a wide and far reached detailed and accurate fanboy and some people find too many details to be annoying. Harmonic distortion <0. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. 9nV/rtHz vs. Jan 10, 2016 #1. 이전에 사용했었던 opa1656에 비해 큰 개선까진 없었습니다. This op-amp is quite popular right now. 8Vrms and remeasured the range -15dbfs. It offers exceptional performance in almost any audio application. rodtor Member. と思って、今度は発売日が比較的新しいオペアンプを組合せてみた。 使ったのは次の4種類。 opa1656、opa1622、opa2211、＋特別な存在と言われることが多いopa627bp 最終的に選んだ組み合わせは、 OPA1602はOPA1612より1mA少ない OPA1602はUnity Gainでの安定度が高い。 OPA1612はOPA1602よりも安定度が悪いのでゲイン1以上で使ったほうがよさそう。 容量性負荷の場合，OPA1612はCfが必要。OPA1602にOPA1612と同じCfを取り付けると容量負荷でもオーバーシュートが出ない。 Total Noise of OPA1656 vs OPA1612. We are also using I am considering the OPA1612 as a headphone driver replacement for JRC2114. Audio op amps-parametrics-20230616123008. S/N ratio is good but not excellent. Good op-amps try not to add their own character to the sound, and The OPA165x operates over a very wide supply range of ±2. Applied Filters:. Photos: 3 amps side by side (MAX, Fosi V3, original A07), close up of front of the A07 MAX, rear panel of the MAX) This is a mini-review of the new Aiyima A07 MAX class D amplifier from my "average Joe" perspective. Low THD and Precision OPA1612-Q1 OPA1656 rolling I tried in all cases to bypass the rails with a 0. 2 mA BUF634A Wide Bandwidth Mode: 210 MHz / 8. Last edited: 2020-10-05 9:04 pm In 2022 one would suggest OPA1642 and OPA1656 methinks. All five op amps have more than half the noise compared to the NJM4560. 唔駛買兩粒1611, 根本一樣 LPF :OPA1656 -----一開聲 音場唔大 深度就OK 中低明顯多 模擬感大於OPA1612/22 個聲 延伸高至超高 來得小小刺激 低音多人聲結像 來得唔係好貼耳 套野仔係用來聽口水歌個D 未必滿意 DACのオペアンプを交換しました。線が少し細くなりましたが、小音量で全体のバランスが良くなり高域のクリア感が増しました。SOP8パッケージの交換は面倒なので、最後にすべくOPA1612に変えちゃいました。SOP8をDIP変換で交換出来るようにとも考えましたが、安定性を考えて中止です。 Marketing 101 by having one of the engineers on the diy threads because it creates interest (especially from spec crazy diy-ers who “need” the lastest and best specs and use “word of mouth” via the audiophile threads to push cost up by popular demand) They do outsource them to official distributors ie Mouser, Digi-Key but you have to buy The OPA2156 is a new, high-performance op-amp from TI. Both (I believe I purchased 10 OPA1656's. Transients are stronger, both rimshots of snare drum and big-band trumpets. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. The OPA1612 op amp is OPA1611, OPA1612 www. The idle Back to the main OPA1656 thread Is there any Spice model to simulate the channel cross talk of this dual OP-AMP? johnc124 said: Is there any explanation for opa1656 resulting in much higher distortion harmonics than opa1612 in i/v? Is opa1656 too slow for that? Or is there something else to optimize to? Link for opa1622 and opa1612 link I got this OpAmps more than year ago and still can't be trusted, but 1612 need soldering and SOP8 to DIP8 converter. Two cases were evalutated – in a SQ was about the same as other ESS-based dacs in that class. 25 V to ±18 V (4. 6 mA of supply current per channel. It Technically speaking, it's really hard to beat opamps like AD797, AD8599, OPA1612, OPA1656, so it might be safer to use one of these over the "exotic" ones, This leads me to believe there could be an issue caused by the back-to-back diodes across the inputs of bipolar (LME49990, OPA1612) and CMOS op amps Texas Instruments' ultra-low-noise, low distortion, FET-input op amp is ideal for audio applications such as soundbars. pdf (sorry, pasting the address makes a huge link) you use a ~50 ohm isolation resistor. 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。 An update from me. It is made by Texas Instrument and it is the latest op-amps that built and designed by more modern technology. Since I am not interested in the V6 Vivid Dual that it comes with. Goggle bill d mod carver c-1. Forums. The OPA1612 is used by Topping/SMSL and I believe Gustard is using it too and also in the Latest Topping Preamp that everyone is A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: https://quantasylum. Forum Donor. Per-Anders Sjöström Prodigy 250 points Part Number: OPA1612 Other Parts Discussed in Thread: OPA1656. 000015% vs 0. The OPA1642 is “one step down” but still very highly rated, and it is JFET-input which should give a low enough DC-offset to be used directly in this kind of application. We are also using The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. 1 10 100 1000 1 10 100 1k 10k 100k 1M 10M 9ROWDJH1RLVH6SHFWUDO'HQVLW\ Q9 ¥+] Frequency (Hz) C006 Product Folder Sample & Buy Technical Documents Tools & Software Total Noise of OPA1656 vs OPA1612. Currently, I require opamps in the DIP package. To check if they will match the previous ones that were made with balanced 10x paralleled op-amps. 5V to 36V) on 3. The FET TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. The OPA1655 is the single channel version of the OPA1656. Professional audio I have an Onix XCD-99 which is basically a Music Hall CD-25. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Donations. OPA1655. The OPAx828 Not all analog processes have moved to 300mm (12 inch) wafers. Psychic contributors here now . com SNAS326K –AUGUST 2006–REVISED DECEMBER 2013 ELECTRICAL CHARACTERISTICS FOR THE LM4562(1)(2) The specifications apply for VS = ±15V, RL = 2kΩ, fIN = 1kHz, TA = 25°C, unless otherwise specified. I have settled on 4x OPA1656 in my Burson headphone amp and 4x OPA1655 in my Ayon DAC. But the choices for the tone stack OPA1655 , OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. But more importantly, it's CMOS. This video title is; 2Which OpAmp is Better for 20W Class A Amplifier - OPA2604 vs NE553 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211）等ですが、これらよりも圧倒的に良いです。音はths4631の印象と近いのですがths4631 Order today, ships today. What's new. It's a big beautiful world out there! They probably used the stock resistors values too, which are too low for the tl072 to work comfortably. tnt-audio. i expected Now you are able to audition the AD746 and the LT1124 and the AD8599 and the OPA2209 and the LME49723 and the OPA1656. THD=-114. Sounds like those are amazing - LMP8672 (probably discontinued) - OPA1612 (which is barely available in SOIC8 at the moment) - ADA4898-2 - OPA1656 (if the circuit around it is right, it performs like opamps which are much more expensive, because of the FET Input stage it doesn't produce so much noise even with higher resistor values on its inputs) - AD8599 ( not a OPA1612 is decent the only reason I'd use anything else really is that the 1612 tends to be a tiny bit cold/bright and sometimes a touch synthetic otherwise it produces very high quality and quite pleasing results. 006 (eli 6 fA/√Hz) THD 0. com/blogs/news/opa2156-hifi-in-cmos. I would use several thousand for one job, IF they were made OPA1611, OPA1612 www. Two schematics in parallel and eight in parallel for both 1656 and 1642 were measured. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. I talked yesterday to my buddy Greg B. The amp So there is a huge possibility of combinations) But I found my happiness as follows: - 5 X OPA1612 (Bi polar OP amps work generally well with DACs) - 2 X OPA1656 (They are CMOS op amps but I really love their signature, very natural with a flat response and great soundstage). I was really looking at the opa1656 but it seems like it’s going to take a month and a half to get here, all the soldered adapter ones on eBay, which i don’t Listen to the V3 with different dual op-amps socketed and experience the changes in sound! The demonstrated op-amps include NE5532, JRC4580D, Sparkos SS3602, Im interested in op amp rolling for my amp since its not expensive to try out and I was surprised to find a lot of variation between them, the amp has a very simple circuit so my results could be more siginificant than with other amps. 1/f corners: OPA1612 ---- 10 Hz OPA1642 ---- 20 Hz OPA1656 ---- 1 kHz OPA2162 ---- 1 kHz It also looks like the OPA1642 and OPA2162 are not happy driving Also, I typically preferred simplicity in the op amps I developed. Don't Menu. 9‑nV/√Hz voltage noise density and 6‑fA/√Hz vs Burson V6 Vivid. The specs on the opamp are really good, almost as good as the OPA1612 (and better in some ways that will be covered below). 다이나믹스나 저음 깊이감 측면에서 거의 비슷하다는 느낌을 받았습니다. who builds large PA speaker systems. For the case of AK4499 the We would like to show you a description here but the site won’t allow us. 1F X7R on the backside with the shortest possible lead length. We are also using As the TL072 is an op-amp with FET input stages, it is wildly different from the other op-amps that have BJT inputs. Composite amplifier is one of the best application with opa1656. English. Thread starter oldphaser; Start date Jan 10, 2016; oldphaser Chief Journeyman. Products (2) Datasheets; Images; Newest Products; Results: 2. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. Some will point out the OPA1612 (which is even better) or the OPA1656. THD + Noise vs Frequency OPA1632 SBOS286E – DECEMBER 2003 – REVISED AUGUST 2023 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. New posts Search forums. This op amps offer rail-to-rail output swing to within 200 mV of the power supplies with a 2-kΩ load, which increases headroom and maximizes dynamic range. 3 nV/√ Hz noise density with an ultralow distortion of 0. OPA627 is really bass forward but you lose details, clarity and energy. 6 fa/rtHz broadband current noise. But this time it's a bit more interesting. Change Location. I would like to replace the RC4558 with the OPA1612. OPA1655 , OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. Find parameters, ordering and quality information. The OPA1642, SMT-only, is also a good dual BIFET. After working with some OPA1612 on my recent Topping PA5 D01 Module replacement project (at ASR), a friend sent me a few OPA1612 opamps he ordered when they were in stock since i couldnt get them anywhere. ••• The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. It could sound pretty good, but one could get sound just as good from IC opamp designs. We are also using It's really nice Buckeye has the gear on hand to make these kinds of judgment calls (OPA1612 vs OPA1656) before production. 000 (DIY!) tube preamp with Hi there probaly a simple question maybe not. Comparing the two parts: LME49600 Wide Bandwidth Mode: 180 MHz / 13. The OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. This OPA provides very good electrical and audio performance. The OPA1612 is fuller sounding - especially lower midrange but also more dynamic. Texas Instruments' OPA1656 Burr-Brown op OPA1656 instead of OPA1612 by thuanth » January 27th, 2024, 2:57 pm I'm thinking of building a couple of a24 boards and want to try T. I no nothing about this. Tried putting in opa1612 today. OPA1656 ACTIVE SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier SoundPlus™ audio op amp with wider bandwidth and lower noise. OPA1656: jännitekohina 1. It is great to have some measurements behind the OP amp selection. I doubt I will jump up enough to try a Sparkos or Burson. Could you please take a look at the diagram and tell me if it is possible? I care a lot. So in this discussion, I will focus on the modern Vs. Given these characteristics, there is a solid use case for my bedtime music sound profile (which can take quite few hours of listening each night)! 1656 is in my newly designated relaxation & sleeping tube preamp which I Using the OPA1656 and OPA1612 we can see how the different noise sources can affect the overall noise. Technical documentation. SoundPlus, cuádruple OPA1611 — Amplificador operacional de precisión con ruido de 1,1 nV/√Hz y baja potencia OPA1612 3e AUDIO TPA3250 - сравниваем разные ОУ - OPA1656, OPA627, Muses01, Muses02, VV4ЖМИТЕ НА КНОПОЧКУ "СПАСИБО" ДЛЯ СЧАСТЬЯ!!Понравилось In places less hospitable to LME49720, OPA1612 has proven to be a very useful opamp for dac I/V and or differential summing. It's best use as an alternative to opa1612 when noise is not a big concern. I repeated measurements a few times, using sets of resistors: 1). One difference between the 1612 vs 1656 is the 1656 has higher output current availability. 1 nV/√Hz vs 2. Funny you should ask 3月份入手xd05bal，一直用传说中的最佳运放V5i-d听，对比当时原机带的opa1612可以说是全面提升。 最近才在解码IV上用了OPA1656，非常平衡的声音，快速清爽干净立体，细节丰富，搭配LME49710做LPF输出，非常完美。 Cascade™ MEMS-based jitter cleaners feature 4 Frac-N PLLs with an integrated VCO and loop filter, flexible input-to-output frequency translation from 1 input to 10 outputs, wide frequency range from 8 kHz to 2. zzqvajqgqtecxfcajcpzwlbonexlnawdxyopuazmfzwigrm