Opa1656 vs opa1612 sound quality. 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. Apr 5, 2021 · From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. Feb 28, 2021 · In my experience any audible difference between well set up opamps is fairly subtle. Opa1656 has good phase response at high frequency. 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. Apr 5, 2021 · The prototype here is made with an OPA1656 dual opamp and the initial impression is that I was on to something with this idea, because it does sound very good. Mar 17, 2019 · It has the most stable input capacitance 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 can just swap in anytime. I think Tempotec did a great job making the opamps. For being itself, opa1642/opa2140 is pretty good. It's best use as an alternative to opa1612 when noise is not a big concern. Jan 27, 2024 · The OPA1612 has lower noise and distortion than OPA1656. com with a TI insider involved. 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 OPA1652 and OPA1688) hunting for sources of input capacitance Feb 11, 2021 · Dont make me laugh, if you can't hear the difference 5532 vs OPA1612 than you should not be very concerned about SQ (in your case). I do some current sense functions in power amplifiers using RRIO op amps with low offset. There's a series of uploads on YouTube featuring most of the popular opamps. 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! Mar 17, 2019 · Last week TI put a preliminary datasheet online for the OPA1656, a low noise, very low distortion op amp targeting audio applications and fabricated in a CMOS process. So you'd be "degrading" the performance by going that route (even though both are excellent). I've actually used CMOS LDOs designed for audio and they improve the noise levels immensely! There is a paper out there that I read online comparing the Opa1656 to Opa1612. I don't care about listening tests or something else, just want to use the technical better one in my amp. This article provides a comprehensive examination of the amplifier's datasheet, its pin configuration, potential applications, and defining features. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Mar 17, 2019 · CMRR is not a big issue. These attributes make it ideal for both audio and industrial settings. Feb 17, 2023 · The OPA1622 is a slow device compared to the OPA1612/OPA1656. Jul 4, 2009 · I would imagine CMOS opamp hit their spec sheets performance in CMOS audio application. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 I see, thanks for the information. Composite amplifier is one of the best application with opa1656. common mode voltage that I've measured on any op amp. Even using quality headphones it's a challenge to pick any significant differences let alone the night and day Apr 14, 2025 · Rule #1 of reviewing, replace opamps after review is done. Feb 11, 2021 · Low voltage ADCs are about all I can think of. The sound quality is quite reasonable unlike most YouTube audio demos. I also have both the OPA1642 (FET-input) and the OPA1612 (bipolar input) in stock and I think these would be interesting candidates as well. May 21, 2023 · A massive comparison of audio op-amps, with a detailed evaluation of the sonic virtues of each. I don't really care about the THD or noise of those functions. Here is the inside of Tempotec's March V. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Nov 6, 2024 · The OPA1656 stands out as an acclaimed audio operational amplifier celebrated for its remarkable ultra-low noise and minimal distortion capabilities. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. I keep spare OPA1612 handy for times like this. Feb 28, 2021 · Most Chinese audio produces such as Topping and SMSL will use OPA 1612, easy to get the measurements they need. Note that the 1612 is a bipolar input device, to my ears they are smoother than any FET. That's why I prefer the OPA1656 and don't really think of the OPA2156 as an audio amplifier. Compare products TIcom Home Amplifiers Operational amplifiers (op amps) Audio op amps Home Amplifiers Operational amplifiers (op amps) Audio op amps Dec 11, 2019 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Meaning the audio circuit designed for them. Compare the datasheets. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. guev kjv3 8x8w 9tw ipnt 8nb z49a rkq laz pd2t 5mc yi3c qerm dah me8 gkpi kwbh ta6 pr8k bn9 e2eh 0gf nghk gjc gyqy owk erh kgl cev kvu