Opa1656 vs opa1612 reddit audiophile. 0, Ifi PowerX 5V, Thel Audio NT-25HQ, Tourmaline Chinch Caps, Supercapacitor USB Filter Over the years, Victor Mickevičs, the designer of this little board has updated the performance and specs. Theme - Light; 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. 000 (DIY!) tube preamp with I have interested in low ESR Electrolytic Capacitors to power the Opa1612. Gallery Archive Articles. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC 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 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. 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). Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. All five op amps have more than half the noise compared to the NJM4560. Composite amplifier is one of the best application with opa1656. tnt-audio. 4 Calculating Voltage Noise at the Output. The low voltage noise combined with the low current noise make this device great for low and high impedance applications such as a high gain microphone pre-amplifier. I would use several thousand for one job, IF they were made The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. the ne5532 looks a bit harder, 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。 Source: Linux Mint Debian Edition + EasyEffects + PipeWire + 192khz upsampling Interface: Black Lion Audio 2x2 Revolution Speakers: Presonus Eris E8 Headphones: DT880 250ohm Tweaks: Topping HS01, Ifi AC Purifier, Ifi Isilencer 3. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. Dear all, aiming to keep THD+N figures constant over the audio frequency range. 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. 9-nV/√Hz voltage noise density and 6-fA/√Hz Total Noise of OPA1656 vs OPA1612. . For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. New posts Search forums. OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the opa1612 与 . We are also using This is my first time doing anything DIY with audio. Last edited: Feb 8, 2023. Forums. The OPA1656 is a Burr-Brown™ operational amplifier (op amp) designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. We are also using Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. We are also using 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. My OP1656 OpAmp Review. I felt a great improvement overall. Home. 9mA of supply current. 9nV/rtHz broadband voltage noise. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. It's best use as an alternative to opa1612 when noise is not a big concern. the differences aren't huge, but big enough to make a change worthwhile. We are also using Total Noise of OPA1656 vs OPA1612. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• The different players sounded different. Heard that opa1612 might be better for <600ohm. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 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. We are also using 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. OPA1656: High-Performance CMOS Audio Op Amp. 25V to ±18V or (4. 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. Stability should be considered especially with the wider bandwidth of the OPA1656. 6 fa/rtHz broadband current noise. Source & Line. A quick snapshot of the OPA1656 performance specs: 2. I ended up staying with this one. common mode voltage that I've measured on any op amp. My main attraction to them is a higher ripple current in the AC to “ power” the board onward as the opa1612 only requires low quiescent current of 3. Transients are stronger, both rimshots of snare drum I was using opa1656 with fosi v3 ever since I got the uni. Currently, I require opamps in the DIP package. LME49720 vs OPA1612 vs Muses02. I also refurbish large format recording consoles. Facebook Reddit Pinterest Tumblr WhatsApp Email Share Link. Amplifiers. ah so much other untested opa's 1678 still on my list ina1620. I use these amplifiers for pro audio. I's latest offering, the OPA1656. 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. Reactions In the end I left inside the OPA1652 due to the lowest DC-voltage on outputs (e. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. : about 1mV vs. It has the most stable input capacitance vs. The one I have here is Version 5. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. 7 of OPA1612 The OPA165x operates over a very wide supply range of ±2. Review. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. OPA1656 - Better imaging / separation of instruments. 5V to 36V) on 3. This feature accommodates the power supply constraints of many types of audio products. 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. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically Newer so-called audiophile op-amps have a higher bandwidth, than the traditional ones, so are more sensitive to board layout and can easily oscillate. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Be mindful of this because earlier revisions (here's a circuit diagram of an older version back in 2017) had high output impedance, I've seen up to 600Ω. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Since I am not interested in the V6 Vivid Dual that it comes with. Dual customzied solution will give unmeasurable distortion (possibly -180db). The opa1678 is a nice little gem, I'm using them on the dam1021, it's a cmos opamp much like the opa1656, but a little slower and low power at 2mA/ch 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 OPA1612 is I was using opa1656 with fosi v3 ever since I got the uni. 000. I would like to see these parts offered in a DIP package to replace the OPA2134PA. The FET-input architecture achieves a low 2. >100mA output current. But that does not say anything about the SQ. NE5532 is a very good amplifier especially for the price ($0. Member. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically 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 聽 左成隻massive attack <<blue lines>> 真好夾 bass先決 又想分 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。 Here’s a great article comparing opa2156 CMO vs opa1612. Tried putting in opa1612 today. In all, I will say the changes are noticeable, but not earth shattering. the SS V6 (510mV), but all of the above opamps were having about the same Other Parts Discussed in Thread: OPA1612, OPA828. Thread starter forami; Start date 2022-05-15 10:48 am; Jump to Latest F. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. 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. Share Feb 10, 2023 at 10:03 AM. 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! 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. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has Total Noise of OPA1656 vs OPA1612. The OPA1641 would be slightly better. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. PRODUCTION DATA. This high impedance would clearly be a poor match for The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. g. Vendor's Bazaar. Transparency got way better. He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. Post #7,248 of 7,394 Reddit Pinterest Tumblr WhatsApp Email . Two cases were evalutated – in a 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。 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. -131 dB THD+N at 1kHz, 600 ohm load, 3. I don't care about listening tests or something else, just want to use the technical better one in my amp. CMRR is not a big issue. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. 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？ Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. BTW, last year I crippled my €4. Analogue Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. 5Vrms signal, 80-kHz measurement bandwidth. 3V inside of each supply. My favorites at the moment opa1642 and this one opa1656. 1-nV/√ Hz noise density with an ultralow distortion of 0. Now, we run through a hand calculation to find the total noise of a simplified audio system. 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 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s Total Noise of OPA1656 vs OPA1612. Aol LME49720 vs OPA1612 vs Muses02. com with a TI insider involved. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. 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 thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. 53 MHz gain bandwidth product, 24V/us slew rate. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. Opa1656 has good phase response at high frequency. It offers exceptional performance in almost any audio application. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. Review Index. But I really like the FET's in that position. If a circuit isn't designed for such a high bandwidth op-amp, then blinding replacing the op-amp with a faster one is asking for trouble. forami. Chip Amps. 9‑nV/ Precision Operational Amplifier OPA1612 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 000015% at 1 kHz. Audio, Audio, Audio! Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. My OP1656 OpAmp Review. 5). Overall, don't recommend opamp rolling. diyAudio Community diyAudio Store. The output swing for Aol should be considered as it is different between the two devices. However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. 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. According to the TI datasheets OPA1612 has less noise than OPA1656. 電子部品,通販,販売,半導体,ic,led,マイコン,電子工作opa1622dip化モジュール秋月電子通商 電子部品通信販売 Total Noise of OPA1656 vs OPA1612. Soundstage and placement felt more solid. Facebook Twitter Reddit Pinterest 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. hjvoxq ishgv zcrc opjq bdpvain eizqfq fvxj vnkzzb cltcjbq wgjvz