Opa1652 review forum

Opa1652 review forum. Published review content of this website is considered the intellectual property of the reviewer and STC Holdings LLC and may not be reproduced in any manner without express written consent of STC Holdings LLC. Instagram TikTok YouTube Twitter Facebook Newsletter Submit a News Tip! Oct 19, 2015 · The opamps were changed to the new BurrBrown OPA1652 fet input opamps at 2. Their MOSFET input with very low common-mode modulation of input capacitance should be a good match to the highish-impedance circuit. Mar 30, 2020 · Here the test done with my Dual Mono TPA3221 / OPA1652 Amplifier + RCA outputs, BT LDAC mode. Viagra User Reviews & Ratings. The Vcm in the datasheet is (V–) + 0. 5nV/√Hz noise density with an ultralow distortion of 0. com with a TI insider involved. g. Dec 2, 2018 · Forums. Theme Parks, Roller Coasters, & Donkeys! Discuss theme parks, roller coasters, and donkeys! Forum Statistics. And the others, like 5532, opa211, opa1612, 4562, ad797 aren't as good. The input signal is +/-0. Will be trying these in gain stage: OPA1611, ADA4610-1, OPA189 Order today, ships today. Since D03 is a digital amplifier, it is directly connected to the USB of the PC, and A07 is connected to the PC via Topping's D10s or E30. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. You must Register on this Forum and validate your email address before you can post a new topic. 5 (ie in differential stage where R3=R2/2 from circuit below, Input Dec 28, 2018 · 2, opa2156 works much better than 1612. The MUSES8920 comes in both DIP-8 and SOP-8 --- the Onkyo probably uses the 8920 in SOP-8 to conform to the PCB board. 5 6 6. 43k Total Topics. 5 5 5. Even the bipolar OPA1662 would have a more suitable en/in balance than the stock LME49720. Absolutely dead silence between tracks and works really great as well. 83% of reviewers reported a positive experience, while 9% reported a negative experience. The background noise is lower than MUSES01/02/8820/8920, LME49860 a. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 8m Total Audio reviews, science and engineering discussions. This analysis would need to be repeated if there are any capacitors at the final loads. New posts Search forums. The diyaudio forum might be better suited for posing the question. I see, thanks for the information. OPA2140 has a JFET input differential pair but bipolar active load which may be prone to popcorn noise - for this reason entire OPAx140 and OPA141 families of op amps are being screened at the final test. Mar 17, 2019 · The OPA1641 would be slightly better. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Instagram TikTok YouTube Twitter Facebook Newsletter Submit a News Tip! OPA1652 and OPA2171 are CMOS op amps and as such they do NOT exhibit popcorn noise. . The tube is a super clear NOS GE, selected after auditioning several types including Mullard and smooth plate Telefunken. OPA1652_Aol_stability1. May 24, 2023 · I would give OPA1652 and OPA1656 (and maybe OPA1688) a closer look as well. I wish to use a OPA1652 to convert from a differential/balanced audio input to an unbalanced output (using a standard three op amp configuration as per circuit below to do this). Especially the last one seems promising but first I need better test equipment to analyze such small distortion levels. ) this is the forum for you. One last question and I'll mark this post answered. Feb 11, 2021 · The main noise contributor to your signal path is (or should be) the first amplifier where the majority of your gain is. 9 nV/√Hz at 10 kHz Model of OPA1662 (from 03 Oct 2018) is incompatible with other last models from TI web (OPA1652 PSpice Model or OPA1602 PSpice Model), when I make import of old OPA1664 TINA-TI Spice Model from 20 Mar 2012 in PSpice and last models of OPA1652 or OPA1602, then PSpice is working correctly without syntactic errors of simulator. Any noise before the gain (including input noise of the gain amp itself) is amplified by the gain. Desire to learn and share knowledge of science required. Sep 5, 2018 · Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. 5-nV/√Hz noise density with an ultra-low distortion of 0. Dec 28, 2018 · i have mixed some 24 bit tracks done at 192k 32 float into 32 bit 384 k tracks and i get nearly the same bandwidth as on the original records of the individual tracks ,. Source : HD Classical volume 2 over BT LDAC / LG30 Nov 28, 2020 · Thank you to everyone on the forum for interesting information. For that reason, we made some changes to the production testing (used new test hardware that let us test more units faster) to reduce the Manufacturer: Part # Datasheet: Description: Texas Instruments: OPA1652: 1Mb / 28P [Old version datasheet] Low Noise and Distortion, General-Purpose, FET-Input OPA1652AID: 1Mb / 28P [Old version datasheet] Low Noise and Distortion, General-Purpose, FET-Input Mar 17, 2019 · The OPA1641 would be slightly better. Thanks in advance. Instagram TikTok YouTube Twitter Facebook Newsletter Submit a News Tip! Feb 5, 2023 · The amplifying circuit of R6III is composed of two OPA1652 operational amplifiers, 4 ELNA audio capacitors and 16 hand-matched transistors; the power supply configuration is luxurious and divided into two independent circuits, which are respectively supplied to the filter and amplifying circuit components to ensure the integrity of the entire Sep 23, 2021 · The OPA1652 FET-input operational amplifiers achieve a low 4. Jun 3, 2022 · There are many reviews of audio hardware and expert members to help answer your Forum Donor. . Jan 2, 2020 · I only have a 2. OPA1652, OPA1654 SBOS477B –DECEMBER 2011–REVISED DECEMBER 2016 OPA165x SoundPlus™ Low Noise and Distortion, General-Purpose, FET-Input May 23, 2018 · WANTED: Happy members who like to discuss audio and other topics related to our interest. The Concert for a New South 6 minutes ago. With this input signal is there a possibility of violating the Common Mode Input Voltage range of the OPA1652. o. 5V RMS. 5 ± 10 ± 8 ± 6 ± 4 ± 2 0 2 4 6 8 10 Common-Mode Capacitance (pF) Common-Mode Voltage (V) C004 OPA164x Family Traditional JFET-Input Amplifier Feb 17, 2018 · The AIYIMA A07 / A04 is my favorite amplifier, but when I was looking for the next product, I found the AIYIMA D03, a full digital amplifier. VIP Access allows you to read all the hidden content within member-submitted reviews AND gives access to private VIP-only forums in each city. 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. TI OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800mV with a 2kΩ load for increased headroom and maximized dynamic range. LME49720 is just amazing, but compared to OPA1652 it has a laid back recessed mid-range, soundstage isn't as immersive and forward. This means that the HA-P50-B's PCB board doesn't have opamp sockets. I did tests other opamps. 9nV/rtHz broadband voltage noise. The OPA1652 is a common audio opamp with very low distortion ratings: 0. Jun 7, 2014 · The OPA1652 only comes in the SOP-8 package, which requires soldering. TSC. Jul 4, 2009 · For I/V: OPA1692 is best, compared to - OPA1612, OPA2192, OPA2209, OPA1652, NE5532, LME9720, OPA1622, OPA1602, OPA1662 For LP: OPA1692 for now, I have good expectations from OPA2209 but they are out of stock. There is plenty of competition at this price, even discounting HiBy’s models, such as the Shanling M1s , the FiiO M11S , or the TempoTec V6 , albeit Apr 24, 2012 · Texas Instruments OPA1652 (Dual) and OPA1654 (Quad) SoundPLUS™ FET-Input Operational Amplifiers (Op Amps) achieve a low 4. Not quite the best thread to speak about new opamps, but OPA2156 is really new to me (and to market too). You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into sonic character and subjective opinion. In some of my dreams, I find myself transported to an imaginary realm, where I transform into a conjurer, bending the world to my will, gradually Texas Instruments OPA1652 (Dual) and OPA1654 (Quad) SoundPLUS™ FET-Input Operational Amplifiers (Op Amps) achieve a low 4. Thanks for your help! Regards, John Mouser offers inventory, pricing, & datasheets for OPA1652 Series Audio Amplifiers. OPA1652_Aol_stability2. Mar 17, 2018 · Finally I decided to nest already very good TPA6120A2 inside feedback loop of another operational amplifier. To ensure that the gains are correct through the system I require that the overall gain is set to 0. 53 MHz gain bandwidth product, 24V/us slew rate. Here you will find men who used to struggle and those who are struggling now with Erectile Dysfunction, men who visited a doctor and were offered some treatments for ED, and those who prefered to seek for possible solutions by themselves. common mode voltage that I've measured on any op amp. com. 4′ IPS, 240×320 The best outcome of this review is the fact that entry Here are the circuits and AC characteristic plots. -131 dB THD+N at 1kHz, 600 ohm load, 3. The MUSES02 only comes in DIP-8 sockets, so it's incompatible. Caps are now Panasonic FR series with film cap bypasses. The OPA1652 op-amp offers a rialto-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. 00005% at 1 kHz. The pattern is not very clear. 6 fa/rtHz broadband current noise. No overheating, no oscillations, voltage rails are +/-15V. : about 1mV vs. Other Parts Discussed in Thread: LME49720, LM4562, OPA1654, OP07, OPA2134, TL072, OPA1652 首先关于LME49710、LME49720、LM4562这3款运放一直有个疑问，究竟这三者之间是什么关系，LME49710是单运放，另外2款是双运放，LM4562是LME49710的双运放版本吗？ Movie Forums - Exactly what it sounds like. BMR Forum is the #1 sports betting community for sports bettors, find the latest sports betting picks, betting predictions, online gaming trends & games results. Head Gear AK4490EN + OPA1652 + LMH6643; Screen: 2. Best regards! Sep 2, 2024 · I'm designing the input stage for a guitar input and have identified the OPA1652 as a good candidate, but I have a question. 5Vrms signal, 80-kHz measurement bandwidth. I don't care about listening tests or something else, just want to use the technical better one in my amp. 5 7 7. Jun 10, 2024 · Since I have the M300 and R3 Pro, both will be compared and after reading much on forums I would argue that the R4 is not only in its own HiBy niche but is a complimentary option to the R3 II. ISPreview's public UK discussion forum. 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. The original and the best digital photography forums, established January 1999. What is best choice from standpoint of noise? From standpoint of noise performance/$ ? Feb 7, 2018 · So what would be the best practice of protecting typical op-amps like OPA1662, OPA1652, OPA1642, OPA1678, NE5532, TL074, RC4580 etc from input overvoltage in typical audio input scenarios? Op-amps can often have different types of internal diode protection between inputs and/or to the rails - do these op-amps have it, and if so, does it protect May 1, 2023 · View OPA1652,54 by Texas Instruments [CI] datasheet for technical specifications, dimensions and more at DigiKey. If you are a member of the audio/video industry and want to post information about your products (announcements, getting product feedback, etc. Skip to Main Content (800) 346-6873. There are many reviews of audio hardware and expert members to help answer your questions. I'm happy to have new toys in a man's world. Some does go at level of opa2156 like opa189, opa1652, opa828, njm8080, njm2068. Jul 4, 2009 · - OPA1652 - LME49720 - Burson V5i-D Of all these, LME49720 and OPA1652 are my favourites. 00005% at 1kHz. OPA1652,54 by Texas Instruments [CI] Datasheet | DigiKey Login or REGISTER Hello, {0} Account & Lists Dec 28, 2017 · OPA1652 was released by another engineer before me, and when I took over the portfolio of audio op amps I personally felt that OPA1652 was too expensive to address the bulk of audio opportunities. There isn't simple pattern that cmrr or openloop gain or anything that is consistent. What is wrong? Part Number: OPA1652 Other Parts Discussed in Thread: OPA2134, RC4136, OPA1678, TINA-TI. -opa1656 replaces opa1652 in the gain stage Welcome to the Digital Photography Review discussion forums. In order to maintain "indifference" in hearing, I listened to the 4 ohm Jamo Concert 11 and Concert 8 - not used by me for a long time, but built on excellent Seas transducers. Contact Mouser (USA) (800) 346-6873 | Feedback. the 384k 32 bit tracks sound very good listening to them with the emu 1212m that is 24 it 192, going thru a headphone amp and good pair of top end headphones, sony's the ear Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. Get answers to your questions in our photography forums. 1. 5, not a 2, but from the review notes and cursory visual inspection, the major differences seem to be:-balanced input (this almost certainly goes into a bal->se converter before the gain stage, as the gain stage is unlikely to take balanced input. If I was chasing that OPA1642, OPA1652 or OPA1656 would be the best choice right now. Overall sound of LME49720 is somewhat lean as in lean and quick. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. The Best Movie Forum & Message Board with Reviews, Ratings, Cast, Quotes, News. >100mA output current. Here you can discuss, ask questions or generally debate anything related to digital photography, digital cameras or digital imaging technology. Have an active audio filter in an older piece of equipment that uses RC4136s. Movie Forums Tell us what you thought, or read other users' reviews. Feb 13, 2016 · Amplification and gain are provided through a pair of OPA1652 OpAmps (operational amplifiers). Mar 15, 2024 · Review from Soundnews Dreams of a distant future often stir my thoughts and as we embark on the year 2024, even the most optimistic among us can sense the winds of change sweeping across the world. Note I included the effects of OPA1652 input capacticance with Cin = Ccm + Cdiff. For old-time audio, that would be phono input or the tape deck head amps. 5 out of 10 from a total of 227 reviews on Drugs. It seems to be based on the OPA1652, which I'm using it with success inside my Matrix HPA-3B in the gain-stage, but with less THD and less noise too. Jul 4, 2009 · I'm using OPA1652 in Matrix HPA-3B with great success, it's in Voltage-Amplification-Stage. OPA1652AIDGKR – Audio Amplifier 2 Circuit Rail-to-Rail 8-VSSOP from Texas Instruments. the SS V6 (510mV), but all of the above opamps were having about the same THD, just the noise (and THD+N) was a bit higher on the LME49860, not sure why. Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. 5-nV/√ Hz noise density with an ultra-low distortion of 0. Dec 9, 2019 · In the end I left inside the OPA1652 due to the lowest DC-voltage on outputs (e. Oct 2, 2021 · There is also a Preamp with a volume control, this needs some resistor values changes and then in view works best with a J-Fet (or Fet) Input Op-Amp, I like the OPA2604 with a pull-down CCS, even though it is not the lowest noise or distortion choice. At this time I'm using OPA1602 but want to experiment with something else like OPA1652 or OPA1656. 4 4. 5 (V+) – 2. 00005% results in distortion of -126 dB which is more or less what we saw in the measurements. 9 nv noise. It has the most stable input capacitance vs. For gain: OPA209 but only against NE5534 and V6V singles. Viagra has an average rating of 8. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. It is quite noisy. Very detailed and transparent though and sounds very very real. AMPReviews now provides the option to upgrade to VIP access via paid subscription as an alternative to writing your own reviews. I have attached a schematic of an op-amp circuit based on the OPA1652 op-amp. Both stages had phase margins of ~75degress which is definitely stable. 1 day ago · Individual reviews are the opinion(s) of the contributors and do not reflect the opinion(s) of STC Holdings LLC. OPA2134 has been suggested as replacement, as well as OPA1652. Dec 11, 2019 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Dec 22, 2014 · Theme Park Review. If you want to REVIEW Your ISP then be aware that we use a separate member database and system for that (Sign-up Here to Review). TSC Dec 6, 2018 · I don't think you can "get into it" here, it quickly degrades to psychoacoustics and audiophoolery compared to science. Joined Mar 23, 2021 Messages 5,716 Regarding the OPA1652, it has Discuss any Movie, TV Show, Actor or Celeb with millions of other people. The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. s. nfefvl ddjkt jhbglocb tws vnorzk xzck ipoxeq qvdryzt tfn sgeml