Opa1656 vs opa1612
Opa1656 vs opa1612. 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. 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! Jan 28, 2018 · 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). The advantage of OPA1656 is that it has JFET inputs rather than bipolar, so its input bias current is much lower, making it easier to keep the output DC offset low in some Dec 6, 2018 · Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. Jan 10, 2016 #1. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. common mode voltage that I've measured on any op amp. If a transient causes the op amp inputs to be pulled apart, the differential input voltage forward-biases those diodes causing a large input bias current. NE5532 is a very good amplifier especially for the price ($0. Sep 14, 2021 · 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 (OPA1656). 5 V to 36 V) on 3. Transparency got way better. ah so much other untested opa's 1678 still on my list ina1620. Mar 9, 2023 · 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 is higher than DO300 with less op-amps. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. Tried putting in opa1612 today. But I really like the FET's in that position. . Pin can be left floating or connected to any voltage between (V–) and (V+). Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. Currently, I require opamps in the DIP package. Now, we run through a hand calculation to find the total noise of a simplified audio Total Noise of OPA1656 vs OPA1612. 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. Thread starter forami; Start date 2022-05-15 10:48 am; Jump to Latest F. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. It could sound pretty good, but one could get sound just as good from IC opamp designs. But that does not say anything about the SQ. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you might need to add some compensation for the OPA1678, depending on TI’s OPA1662 is a Dual SoundPlus™ low noise (3. tnt-audio. Page: 23 Pages. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. The FET-input architecture achieves a low 2. I also refurbish large format recording consoles. 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 - MartinLogan reQuest 15" x 48" electrostatic hybrid with 12" sealed woofer 180Hz cross Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. Dec 9, 2019 · 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, unless swapping opamps is really fun for you and you have enough money to spend on this hobby. OPA1656 1/2 OPA1656 Input Output Pad Product Folder Order Now Technical Documents Tools & Software Support & Community 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. The knee in the OPA1656 noise curve is higher because the broadband noise of the OPA1656 is lower (2. 25V to ±18V or (4. Opa1656 has good phase response at high frequency. Mar 17, 2019 · If you pick a point on the 1/f portion of the noise spectral density curve you can see that the two parts are essentially identical. File Size: 611Kbytes. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. 1nV/√Hz Noise, Low Power, Precision Operational Amplifier OPA1612 The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. Now, we run through a hand calculation to find the total noise of a simplified audio OPA1611, OPA1612 www. 2022-05-15 10:48 am #1 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 3V inside of each supply. forami. I felt a great improvement overall. For example, at 10Hz both parts are approximately 35nV/rtHz. Soundstage and placement felt more solid. 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 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. 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. Now, we run through a hand calculation to find the total noise of a simplified audio Dec 28, 2017 · There are some things to watch out for when swapping op amps. Dec 11, 2019 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Standard opamp for that has pretty much become OPA1612. PRODUCTION DATA. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Dual customzied solution will give unmeasurable distortion (possibly -180db). Mar 17, 2019 · The OPA1641 would be slightly better. 8nV/rtHz). 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 Part #: OPA1656. Transients are stronger, both rimshots of snare drum and big-band trumpets. For the case of May 19, 2017 · 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 really doesn't give much 20 kHz added safe composite loop Mar 17, 2019 · 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. Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. OPA1656 ACTIVE SoundPlus™ ultra-low noise and Bipolar-Input Audio Op Amp OPA1611 — 1. This feature accommodates the power supply constraints of many types of audio products. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. Now, we run through a hand calculation to find the total noise of a simplified audio 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, Mar 17, 2019 · The OPA1641 would be slightly better. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. 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. Composite amplifier is one of the best application with opa1656. 4 Calculating Voltage Noise at the Output. So you'd be "degrading" the performance by going that route (even though both are excellent). Are there any other Total Noise of OPA1656 vs OPA1612. 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。 运算放大器OP AMP声音评测Audio Test | BB-2134 VS BB-2604 VS MUSES-8920【JunMan】 【穷人HiFi】拓品Dx7 Pro DAC拆解及运放升级OPA1612 P2 Total Noise of OPA1656 vs OPA1612. OPA1611, OPA1612 www. Aol 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. 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. 9mA of supply current. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. May 15, 2022 · LME49720 vs OPA1612 vs Muses02. Two cases were evalutated – in a Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. 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 ran Jul 4, 2009 · 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 them in bulk (we’re talking 100s to 1000s) and 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, Total Noise of OPA1656 vs OPA1612. System: Equitech 1. Does anybody know design advantages of choosing a certain topology? Jan 10, 2016 · OPA1611 vs OPA134 or OPA1612 vs OPA2134. 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, 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 Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. It has the most stable input capacitance vs. Download. OPA1656 sounded worst, Muses 8920 sounded best. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. e. The Opa1612 is the audio version so they made the specs slightly worse. Since I am not interested in the V6 Vivid Dual that it comes with. It's best use as an alternative to opa1612 when noise is not a big concern. 5V to 36V) on 3. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 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. 25 V to ±18 V (4. OPA1656 Mar 22, 2022 · 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 LME. 000015% at 1 kHz. Jan 27, 2024 · The OPA1612 has lower noise and distortion than OPA1656. Find parameters, ordering and quality information. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Total Noise of OPA1656 vs OPA1612. I prefer the opa2211 over the opa1612 (same chip but with less better specs). Now, we run through a hand calculation to find the total noise of a simplified audio Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 1-nV/√ Hz noise density with an ultralow distortion of 0. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. The output swing for Aol should be considered as it is different between the two devices. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Mar 14, 2010 · Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. Feb 11, 2021 · 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. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. Member. ••• 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, low-noise 36-V JFET precision operational Total Noise of OPA1656 vs OPA1612. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. My favorites at the moment opa1642 and this one opa1656. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. Dec 30, 2023 · Part Number: OPA1612 Other Parts Discussed in Thread: OPA1656 I'm up to, to design a 3rd or 4th order 20 Hz high pass filter with ultra low distortion. Now, we run through a hand calculation to find the total noise of a simplified audio Apr 5, 2021 · We would like to show you a description here but the site won’t allow us. 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 又想分析opa1656幾好 Dec 10, 2021 · This is my first time doing anything DIY with audio. ti. We would like to show you a description here but the site won’t allow us. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. It offers exceptional performance in almost any audio application. 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. 5). Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. Now, we run through a hand calculation to find the total noise of a simplified audio Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. com with a TI insider involved. I don't care about listening tests or something else, just want to use the technical better one in my amp. Compare the datasheets. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. com Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Joined 2022. 9nV/rtHz as opposed to 3. Thread starter oldphaser; Start date Jan 10, 2016; oldphaser Chief Journeyman. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Joined Sep 8, 2012 Messages 848. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. CMRR is not a big issue. jvbp fejz fiq wszkgr wceys vupvwir xmz ieqmls bnqf npeak