Opa1656 sound specs So I don't think there is a singular correct Mar 17, 2019 · I´m afraid the specs make it a bit difficult to compare. 1641 is one of their many options. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Thanks in Mar 17, 2019 · The good news is that in audio, impedance levels are relatively low so parasitics need to be larger to have a bad effect, and most audio opamps are not really high speed. Nov 6, 2024 · Going beyond simple amplification, the OPA1656 brings pristine accuracy to high-fidelity sound systems, addressing the issue of audio distortion common in bustling settings. 5Vrms, Gain=1 and Load=2k The INA851 specifies THD+N at -110dB @ 10Khz and at a BW of 500Khz. I don't care about listening tests or something else, just want to use the technical better one in my amp. The OPA1656 is a newer device with better typical room temperature specifications in regards to the following: Nov 11, 2024 · OPA1656 ( modern clean smooth sound, nice "deep" bass, which is "the" pro for me for this opamp ) OPA627 ( goes actually into the oldschool direction, it has similar attributes as the burson V6 vivid, but latter sounds more refined ) Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. OPA1655. I would not classify the OPA1656 as a high speed amp in this context. I routinely use OPA1656 and related on adapters without any issues. Mar 17, 2019 · Just going into some more details with the OPA1656: with an average 3. Professional audio amplifier. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational OPA1656: 611Kb / 23P [Old version datasheet] Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier OPA1656: 3Mb / 42P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers REVISED SEPTEMBER 2022: OPA1656ID: 611Kb / 23P Sep 27, 2019 · The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0. This device also features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2-kΩload, and can deliver 100 mA of output current. A/V receiver. Again, it's the circuit topology that is the most important to get the best sound out of any op-amp. common mode voltage that I've measured on any op amp. DJ equipment. Guitar amplifier and other music instrument amplifier. Mar 17, 2019 · Many high-end audio manufacturers still use THT technology and avoid SMD at the sound-relevant points. 000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. All I have done is an A/B with my favourite op amp, the LM6172, and it didn't come off that well, though you could certainly tell the hard work that had gone into it. Special function module. Mar 17, 2019 · 3. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. I'm looking for help verifying my analysis. Its low-noise, high-performance features enhance its role in precise industrial measurements, making it valuable where signal interference must be minimized. May 19, 2017 · Personally I loathe the sound of the LM4562 but I haven't really given it a full chance, tailored to its characteristics. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. When both amps at Vout=3. It offers exceptional performance in almost any audio application. It's a killer OpAmp, and better suited to The high bandwidth and high open-loop-gain design of the OPA1656 delivers a low distortion of 0. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. the default NE5532 OP amps supplied) and have - alternatively - a look at some of the rather "cheap" integrated OP amp alternatives, which fit the V3 sockets from In principle all variants should sound transparent, but you have the option to change the Audiophonics OP amp if you want. Nov 30, 2021 · Both devices are very popular and great for audio. Well, if I was imaging all those above, then i was. Years ago the MUSES 01 was $35 in Japan and it was at the time way ahead of it's time. 000035% (–129 dB) at 20 kHz, and improves audio signal fidelity across the full audio bandwidth. A TSSOP8 to DIP8 adapter should work. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. SOIC-8 to 8-pin DIP Mar 17, 2019 · Hi John, Currently kind of assessing the OPA1656 following your excellent thread(s) - very modestly in some line output stages of my HIFI. If If I wasn't imaging all of those, the possible change is the circuit layout and the final performance, including crosstalk, distortion, PS noise etc. Bookshelf stereo system. Download. A quick snapshot of the OPA1656 performance specs: Sep 18, 2019 · And opa1656 and opa1612 doesn't sound any different. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Also, a LME49720HA that costs 5 times as much as the PDIP or SMD version should also be interesting in terms of cost calculation. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. com with a TI insider involved. Cimarron has the 1641 in SOIC-8 OPA1641AIDR Texas Instruments - Cimarron Technology They can also mount SOIC-8 on a DIP-8 adapter. The FET-input architecture achieves a low 2. OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). This device also features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The OPA1656 specifies THD+N at -130dB @ 10Khz and a BW of 80Khz, why is that, how does the spectrum look beyond 80Khz ? Part Number: OPA1656 Other Parts Discussed in Thread: NE5532, TL072, LM4562, OPA1678, OPA210. I would check the amp out, if its character is basically to your liking (incl. It has the most stable input capacitance vs. SBOS901C (1) OPA1656 delivers a low distortion of 0. 99uV, or a THD+N of -131dB below 3. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. I can't comment necessarily on the sound comparison. 5Volt, just because the THD with -150dB vanishes in the noise. . Mar 17, 2019 · The OPA1641 would be slightly better. OPA1656. Taking a 500Khz BW, increases this THD+N figure to -123dB. com). A quick snapshot of the OPA1656 performance specs: Feb 11, 2021 · Very few high-end audio applications in the signal path need low offset or RRIO. File Size: 3MbKbytes. Turntable. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. 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 · To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. That seemed like a reasonable target for the supply current of the OPA1656 as well. This device features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 kΩ Mar 17, 2019 · 3. orange spectrum - 2 x 8 parallel OPA1656 , brown spectrum - 2 x 2 parallel OPA1656 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. Today, I still have the same 2020 amplifier and the opa1656 sound much, much better at a fraction of the cost. Page: 42 Pages. I do some current sense functions in power amplifiers using RRIO op amps with low offset. 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). I plan to use a OPA1656 for the first and second stages and would like to minimize noise in the circuit. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Part #: OPA1656. amplifier. OPA1622 was targeted specifically for headphone applications, while OPA1656 is a more general purpose device meant to address analog signal processing in line level audio circuits. Low voltage ADCs are about all I can think of. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. I will have a listen to various op amps, old favourites and newer ones, from AD, LT and yours because your triggered my curiousity and all your efforts deserve it for sure. Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Mar 17, 2019 · Yes, I think I will just use the old DIP PCB instead of the SOIC PCB. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Professional audio mixer/control surface. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 5nV/rtHz, over 80Khz, gives 0. Attachments Aug 20, 2023 · My personal OP amp preference for the Fosi V3 are Ti OPA1656 but others have different preferences. I am building a guitar amplifier based on this design: 40W Guitar Amplifier (P27) (sound-au. This fully conforms to the specs. That's why I prefer the OPA1656 and don't really think of the OPA2156 as an audio amplifier. Don't let power supply current limitations get in the way of performance. 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 variation.