Opa1612 diyaudio specs reddit
Opa1612 diyaudio specs reddit
Opa1612 diyaudio specs reddit. 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. Anybody know where to get genuine MUSES02 instead of fakes at a lower price? 4 x 44 + 8 shipping = $184 for four op amps plus tax so ~$200. CMRR is not a big issue. Jul 24, 2012 · I have the Essence ST, same DAC circuitry as STX I believe. So we did his homework for him. They certainly control the output voltage. common mode voltage that I've measured on any op amp. I have 4 of these and would also like to get the specs. Jul 5, 2006 · Personally I prefer LM4562, OPA2228 and OPA1612 over OPA1642 because of the input noise that makes it sound less pristine. ••• Feb 17, 2023 · The OPA1622 is a slow device compared to the OPA1612/OPA1656. You can also try OPA1612 as buffer with OPA2822 for the headphone driver. The plan is to build the amplifier stage directly as described by TI in their reference design tidu672c Voltage conversion for the PCM2707 and PCM1794 will be done by two LP5907 Sep 14, 2021 · 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. 000015% THD or the OPA1642 if JFET is the way to go. Jan 6, 2020 · Not long after AX published Michael Steffes composite OPA1612/TPA6120A2 design in March, 2021, I decided to give his circuit a try. Jan 23, 2009 · Hello samsagaz-I am sure that everyone here will agree that the "specs" often given for various IC op-amps might help differentiate between the possible performance of one chip vs. These Reddit stocks are falling back toward penny-stock pric Reddit's advertising model is effectively protecting violent subreddits like r/The_Donald—and making everyday Redditors subsidize it. I use better parts and designed converter on 4 layer board. Harmonic distortion <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). Click to read now. MUSES8820 is the best, IMHO. The high bias currents responsible for the high current noise will cause issues in many circuits with offsets too - pretty much every stage needs ac-coupling with that sort of bias. any opinions if tried any of the new opamps X. If you're a builder building a custom home for a client, that client will get a mortgage loan to pay you whi The Fleetwood Wilderness is a line of travel trailers and fifth wheels. Expert Advice On Improving Your The Honda SL350 was a classic, vintage, dirt bike built from 1969 until 1973. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. EQ version has 4 chanell so has 4 capacitors. My context of use will be 80 to 90 bB, crossed at 200 or 400 or 800 Hz. 80 EUR for all ten. Source impedance, inverted or not, rail voltage, ad nauseum specs. 8 or 2. 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. Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Trusted by business builders worldwide, th Buying a HDTV is hard enough with so many different manufactures, model numbers, and sizes, to make things a little easier we've put together a list of the most common specificatio The Honda SL350 was a classic, vintage, dirt bike built from 1969 until 1973. These discrete regulators already exceed the PSRR and self noise of the Jan 26, 2024 · The specifications are as follows: Channel: 2. another in "ideal" situations, but often this is of absolutely no use once you actually start installing these devices in place of another one in a particular circuit topology. The website has always p Here are some helpful Reddit communities and threads that can help you stay up-to-date with everything WordPress. Apr 15, 2023 · MUSES02 is currently $44 each plus shipping at Mouser. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. 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. Jul 5, 2006 · Thanks for the link. Your perfect spec list makes up the machine that works best for y Spec work has long been a point of contention between agencies and clients. The 4627 is faster the the 627 (82v/uSec vs. Jan 30, 2019 · So, first thing I wanted to try is to upgrade the opamp in the LPF. Trusted by business builders worldwide, the HubSpot Blogs are your Undervalued Reddit stocks continue to attract attention as we head into the new year. Just did an A/B with 2 opamp buffers on my Hypex NC500 monoblocks, which I normally use with no buffer, as the dac has enough gain to drive the NC500 modules direct. Oct 23, 2018 · Alexander Davis over 3 years ago TI__Expert Hi Donald, While we don't have the specifications listed for the OPA1612, the OPA2211 datasheet specifies the following: RθJA Junction-to-ambient thermal resistance, high-K board 125 °C/W RθJB Junction-to-board thermal resistance 28. (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 for the OPA1692). I noticed a low-cost headphone amplifier board based on Mar 17, 2019 · The OPA1641 would be slightly better. Apparently, this is a question people ask, and they don’t like it when you m BlackBerry said Monday that it wasn't aware of "any material, undisclosed corporate developments" that could rationally fuel its rally. May 15, 2022 · Buggle2 Riaa board. Oct 8, 2001 · ( 49 cents, plus $11 shipping for one of course) We are talking about a chip that is better than a $1000 discrete buffer stage of years passed. the opa1612 will work on an adapter, but the only dip adapters ive seen with 1622 and 1688 on ebay have been stupidly expensive and dont have Feb 11, 2021 · looks very similar to the eighth image from post #2 of Bel Canto's S300i/S300iu - driven by dual mono Icepower amplifier modules with switch mode power supply - go to Inside the Bel Canto S300i integrated amplifier | Audiokarma Home Audio Stereo Discussion Forums and Bel Canto e. 2% on From options to YOLO stocks: what you need to know about the r/WallStreetBets subreddit that's driving GameStop and other stocks. Also they are very hot. So i expected to get fakes but i wanted to know it for shure. ” Spun off of the popular Reddit Polls, Predictions Discover how the soon-to-be-released Reddit developer tools and platform will offer devs the opportunity to create site extensions and more. Apr 18, 2017 · Cetec Gauss H5831-AM Hi - just joined and saw your post. Real low-voltage stuff (think 1. By clicking "TRY IT", I agree to receive newslette During a wide-ranging Reddit AMA, Bill Gates answered questions on humanitarian issues, quantum computing, and much more. I've had an OPA1612 lose its mind in a filter circuit where an LME49720 worked just fine. The H5831-AM was custom built for Audio Mart in Kansas City, MO as an alternative to the Altec 515B. Expert Advice On Im When you build a spec home, you'll have to work with a mortgage lender. Trusted by business builders worldwide, InvestorPlace - Stock Market News, Stock Advice & Trading Tips If you think Reddit is only a social media network, you’ve missed one of InvestorPlace - Stock Market N Undervalued Reddit stocks continue to attract attention as we head into the new year. 707dBc=0. Tough economic climates are a great time for value investors Once flying high on their status as Reddit stocks, these nine penny stocks are falling back towards prior price levels. 022uf Aug 22, 2007 · Hi Ryssen, Having had a quick look the data sheet of the LM4562 August 2006 and of the LM49860 June 2007, the differences I detected were at the end of the documents : no mention of "banned substance compliance compliance" at the end of the LME49860 datasheet. Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. 000130% Although the price was also cheap, It is a pity that NS was absorbed by TI and was abolished after losing the brand power competition with BB. Nov 14, 2021 · I just looked up my calculations and I calculated 9. Let's look first at what they all have in common, then One attorney tells us that Reddit is a great site for lawyers who want to boost their business by offering legal advice to those in need. Does anybody know how the voltage ist regulated in the following configuration? I can't find where the pins 3 and 5 of the OPA1612 are going to. They are ~6. 5 metre cable at 33. The biggest investing and trading mistake th Learn everything you need to know about spec homes in The Homeowner's Guide. 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. Apr 7, 2019 · There are three old chips that are better than ne5532 as i/v stage, but there's no discussion whatsoever on DIYaudio about them and i won't ruin the secrecy tradition mainly because one of them was reactivated after 15 years for a short period of time at Mouser and is programmed for EOL, the stock being limited. Some will point out the OPA1612 (which is even better) or the OPA1656. The bottom line is that different markets need different specs and companies optimize products to match the market. A couple of things surprised me a bit. There are three screen size Reddit announced today that users can now search comments within a post on desktop, iOS and Android. Dec 10, 2015 · A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. Oct 29, 2009 · Even for audio use there are a lot of different applications like - line stage low gain/unity gain (buffer) - line stage, high gain (microphone amplifier) - RIAA stages with RIAA in the NFB network - power amp front end (two versions - signal pad by output and by power supply rails) - two version of low pass/high pass stages in active crossover networks (e. Readings should be taken on both AC and DC meter settings. In any case I would try the first of them, because it is easier to design, and if the performance is not as good as expected, is easy to change the opamp, while discrete solution may require a complete re-design with its time consumpting cons. Oct 29, 2009 · Ah, I wanted to mention that I've also tried a few discrete opamps: OPA-Earth, OPA-Sun and OPA-Sun V2, from Audio-GD. One S300iu integrated amplifier | Stereophile. The PSRR, CMRR, distortion, bias current, offsets will all be pretty lacklustre as the amp is designed to slew ultra-fast above all else. Some measure RMS volts, some measure average volts and display as if it were RMS for sine waves. 100uf per rail has served quite well for ES9038Q2M dacs, have to see if still sufficient when using ES90038PRO with higher currents. 000015% at 1 kHz. If you're a builder building a custom home for a client, that client will get a mortgage loan to pay you whi Whether you're building or buying, the perfect computer isn't necessarily the product of the most expensive parts. What do you think will be the opa1612 distortion now that the available amount of feedback at 1khz has lost 60db ? ••• Oct 29, 2009 · The LM833 has very similar datasheet specs to an NE5532 (the 833 is a little quieter, the 5532 a little faster). While improving on the flaws, some of the IC's SMD legs gave up and broke off. buffers/summing amp/filters - all the same requirements really, but if there's a pot a JFET opamp doesn't require caps in the wiper path to prevent scratchiness. 4224 nV/sqrt(Hz) at 27 degrees before amplification by four with the NST45011 base resistances. See pic. Since then, lots of hype and very little details, despite the super long thread on headfi. ADA4625-1/2 are supposed to be even better than the ADA4627-1, though I've yet to try them. I've done more research and actually have decided against the 2211 and will be using the opa1612 instead for the following reasons: - opa1612 supports 45ma full output current (which could be useful since it's an output buffer stage driving unknown amplifier impedance Jan 6, 2020 · Hi Michael, I have read your interesting article in the March 2021 edition of AudioXpress. Oct 25, 2023 · Been tracing out this new es9039q2m DAC to give it cleaner supply to the relevant parts. It had lights, license plate bracket and instrumentation, making it street legal with many off-road fe There are obvious jobs, sure, but there are also not-so-obvious occupations that pay just as well. 1nV/root Hz at 1kHz with a 10Hz 1/f corner and will cheerfully drive 600 ohms. Tough economic climates are a great time for value investors Reddit says that it'll begin charging certain developers and organizations for access to its user-generated content. Customers can post any issues in those threads as long as it is done in a civil manner. If you're prototyping - be sure to apply power at the same time, if your ground connection fails - AD8397 will burn, JRC4556 is virtually indestructible compared to AD8397. Mar 30, 2012 · I have a Crate VC508 guitar amplifier that many recommend modding by replacing the TL072CP opamp chip. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. It turned out that these OPA1612 are cheap TL082 FET Opamps as you can see on the photos. But I can still easily hook up the buffer board, for something to do when I'm bored. This combination will sound slightly more clinical than the OPA2228/OPA2822 combination. 7 EUR at Mouser. I never could understand why Jim Williams, in his modification of the Dolby 363, used BOTH of them, each in a different part of the circuitry. Sound is very good, especialy a voice but sometimes I hear a little distortions. Because there are many models, the specifications vary, however there are some similarities and ranges that Fuller transmissions, products of Eaton Corporation, provide power and quality for almost all heavy-duty vehicles. Learn what these agency executives think the real problem is. What's not to like with that, and all the other SoundPlus family? Craig ••• Jul 5, 2006 · Hi All, Please advise what would be the best bet for a modern replacement of the NJM353 in my 12-15 years old vintage 4X60W Class A Zero Feedback car amplifier? Tried dual OPA627AU on adaptor but the sound is of reduced volume, of loss details and PCB is warmer than before and the noob in me did not realized the input current of 7mA X 2 or 14mA for the each of 4 dual adaptor as compared to 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 Apr 18, 2020 · TI continues to surprise us with top notch products. I won't know for sure until Mark reveals the opamp device identifications. the pcb also only has DIP8 opamp type placement and this is not compatible with opa1622 or opa1688. Discrete are all diameter opposite. Maybe making a full discrete solution may be a little to complex for my abilities, therefor I was thinking maybe to use the OPA624, but in a way increase the power, say to drive 300 ohm headphones while still retaining the same sound. For OPA1612 in D90, the V+ pin should measure +11vdc, near to 0vac. Without scoping the outputs or measuring the DAC there's no telling if May 26, 2016 · AD8397 is great, just be sure to put 2-3 Ohm output resitor, wirewound 5W should keep the op-amp safe from shorting output to the ground. It's supposed to be a stright up replacement but it's about a third of the size. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. I changed to LM6172 and also reduced the size of the caps in the feedback loop. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 19 Looks like the LM833 has the same specs except they talk more about audio applications on the datasheet. 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. Jul 4, 2021 · The opa1612 are sotamore than good for the job of i/v but we don't know what comes after on the socket Is that a buffer, a filter, ??? Is it a fast oap oscillating on this big socket ? We just don't know ! If a buffer and about your taste needs, You can risk it and putt on this socket an opa2604 if the oap is a double channel Feb 11, 2021 · i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through almost 2 hours o bling listening tests on 3 upgraded cd players a nad 546bee with foil film coupling caps and 50 volt 100uf muse bipolar and wima fkp3 . but if you make a replacement part that originally contains opa1612 and people pay for it, it would be not good for your rep if you use fake parts to save a buck. Even if you’re using an anonymous user name on Reddit, the site’s default privacy settings expose a lot of your d Advertisement Starting at $1,199 for the 13-inch base model, the MacBook Pro's price point can vary quite a bit depending on your needs [source: Apple]. It's best use as an alternative to opa1612 when noise is not a big concern. By clicking "TRY IT", I agree to receive newsletters and p A short squeeze is when short-sellers are forced to buyback the stock to close out their losing positions, boosting demand for the stock in question. No hump at all and IMD of two devices together looks quite low, at least 3 times better vs DIY 9038PRO(which is 12x times more expensive vs 9038Q2M) ;) I have to Sep 26, 2020 · It's a DSO212 with the following spec Max sample rate: 10MSa/s Analog bandwidth: 1MHz Max sample memory depth: 8K Analog input impedance: 1MΩ Max input voltage: ±40V(X1 probe) Coupling:AC/DC Vertical sensitivity: 20mv/Div~10V/Div (1-2-5 sequence step) Horizontal sensitivity: 1uS/Div~2S/Div(1-2-5 sequence step) I don't think it's a measurement artifact as I did the same at the lpf opamp Mar 17, 2019 · TI's SoundPlus opamp family are astonishingly superb designs. It has a flat response, and a line level RIAA equalization because my shitty record player has a built-in preamp and thus a line output, but does not equalize. 50 cents or 5 bucks, Cheap. How much noise and how much distortion you tolerate? The reason I chose the OPA1612 is for it's noise and high open-loop gain. With a low price and nevertheless minimum THD. Don't forget enough stacked film caps on the +-15v rails. The Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. When everyone seems to be making more money than you, the inevitable question is Spec work has long been a point of contention between agencies and clients. Jul 5, 2006 · Since CMOS parts tend to top out at a mere 5. The OPA-Earth was tonally dull and midbass lacking, the OPA-Sun was mechanic in the mids, the OPA-Sun V2 was the best sonically but produced a whopping 375 mV of DC offset where all of the chip opamps produced none. That's 36dB worse than the opa1612, not 50. At this point noise and ultra low noise supplies might be the last area I should put more effort into for this interface. g. 3 MHz. Trusted by business builders worldwide, th Buying a HDTV is hard enough with so many different manufactures, model numbers, and sizes, to make things a little easier we've put together a list of the most common specificatio Here at Lifehacker, we are endlessly inundated with tips for how to live a more optimized life—but not all tips are created equal. If you’re a lawyer, were you aware Reddit Reddit has been slowly rolling out two-factor authentication for beta testers, moderators and third-party app developers for a while now before making it available to everyone over Because site’s default privacy settings expose a lot of your data. Here are seven for your perusal. And of course the OPA1612. May 19, 2004 · If you're looking for an opamp substitution, I'd try OPA1642 to replace OPA2604. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. Trusted by business builders worldwide, the HubSpot Blogs are your WallStreetBets founder Jaime Rogozinski says social-media giant Reddit ousted him as moderator to take control of the meme-stock forum. The LME49860 is another option. AMC At the time of publication, DePorre had no position in any security mentioned. Reddit announced today that users can now search comments within a post on desk Here are some helpful Reddit communities and threads that can help you stay up-to-date with everything WordPress. Pin can be left floating or connected to any voltage between (V–) and (V+). 5nv/6. With several different types of speeds, from 5- to 18-speed trans The KZ1000 is a Kawasaki 1,000 cc motorcycle used by police officers. The best ones are the ones that stick; here are t. I got a TI NE5532 off ebay. At a gain of 60dB, the THAT is only down to -82dB. Feb 17, 2023 · Hello, guys. Dec 25, 2019 · Mike just answered an email I sent him regarding the quality of the stock Purifi input board. Very impressive specs from LM6172 ( see data sheet in link provided above ) , ridiculously high slew rate , and very low 2nd and 3rd harmonics . Thanks for the information on "running hotter". Whether you're building or buying, the perfect computer isn't necessarily the product of the most expensive parts. Strange but found too many times to ignore it. ••• Jan 14, 2019 · I bought 10 OPA1612 from a chinese ebay seller. 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). 6fA @100 Hz), and the voltage noise favors the 627 only slightly (4. Feb 22, 2017 · Hello. . Haven't seen this Aug 28, 2009 · In comparing the spec sheets of OPA627B and ADA4627B-1, the current noise specs are identical (1. com In no case did I have too high expectations regarding the sound Feb 11, 2021 · 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 a really good op-amp. EX version has 2 channells. Tangent didn't mention AD826 and LT1364, which are my best choices. Current noise performance is pretty much irrelevant too for video as the impedance is 75 ohms everywhere. It had lights, license plate bracket and instrumentation, making it street legal with many off-road fe The first thing you’ll notice about the LG Velvet phone is how it strays from the electronic giant’s typical business model. Nov 2, 2010 · Would like to replace my Denon's DCD-1500AE opamps of the NE5532 type with something better, OPA2604 and AD823 are two candidates with identical pin layouts Feb 17, 2023 · I'd go with the LM4562 (= LME49720) instead. May 13, 2024 · Hello, I plan to buil a woofer box to suplement my Alpair 10. It depends on the requirements you have. Trying to recreate the speakers we used to build in the 70's. 42/4 = 10. Its a temporary solution until i am able to work on my dream power amp project. 3 . Up to date drivers are available. Namely, every LG phone before this one has launched as The Quadro series is a line of workstation graphics cards designed to provide the selection of features and processing power required by professional-level graphics processing soft InvestorPlace - Stock Market News, Stock Advice & Trading Tips If you think Reddit is only a social media network, you’ve missed one of InvestorPlace - Stock Market N Reddit announced today that users can now search comments within a post on desktop, iOS and Android. Be sure to include the AD746, the OPA2209, and the ADA4898-2 (mounted on SOIC-to-DIP adapters) in your rotation. -60dbfs. I initially saw both the low input impedance and the signal inversion as potential drawbacks. 5, so the calculation and simulation are close. 1nv). Here it is: amp-LM3886-composite2 - EasyEDA There are several improvements over the previous version: - Lower BOM (one LME49720, several big caps, lots of passives) - Proper signal ground planes both top and bottom - Better power traces: power goes at the top and the VCC/VEE are overlapped. 5mA max Dec 11, 2018 · My plan is to use a PCM2707C for USB to I2S converstion, a PCM1794A will be used as the DAC and the amplifier stage will contain a pair of OPA1612 and a OPA1622. Just check the rails aren't over +/-18V. 55), but in inverting mode only. I hesitate to recommend those without simulating the circuit. Namely, every LG phone before this one has launched as Spec work has long been a point of contention between agencies and clients. I like the Morel CAW 938. If you understand how to choose an opamp's based on requirements, you will be able to do so for many other parts. Much smaller caps work fine with LM6172 because of its phenomenal slew rate. On specs, the up-to-date SoundblasterX G5 looked promising. Not willing to pay that. 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Following on the heels of Twitter’s decision to restrict third- Reddit has joined a long list of companies that are experimenting with NFTs. 1 nV/√Hz noise density with an ultra-low distortion of 0. 5Vrms signal, 80-kHz measurement bandwidth; 53 MHz gain bandwidth product, 24V/us slew rate >100mA output current; 4. Regular version has some compromises in oscillators, power supply. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. It has the most stable input capacitance vs. Money being no option for this project, I am looking to replace all opamps with the BEST opamps as far as specs go highest frequecsy response 20hz-20khz and so forth. But I would have to convert the SOP8 socket to DIP8 first with limited space. Dec 10, 2015 · diyAudio provides this forum for the convenience of our members, but makes no warranty nor assumes any responsibility. Now I grant you, price is not an indictor if it is the best choice. 006% Speaker Impedance Compatibility: 2-8Ω Rated Power Output: With 48V/5A PSU Stereo: 180Wx2 @4Ω Mono: 235Wx1 @4Ω With 32V/5A PSU Stereo: 95Wx2 @4Ω Mono: 110Wx1 @4Ω Frequency Response: 20Hz Feb 25, 2011 · These I want to replace first. 1-nV/√ Hz noise density with an ultralow distortion of 0. I used OPA1612 and analog schematic comes form datasheet. 8Vrms and remeasured the range -15dbfs. Jump to BlackBerry leaped as much as 8. I built a stereo LM1875 amp in the last couple of days. It enabled the use of better components (actual measured performance) that otherwise Jan 5, 2020 · I did replace OPA1612 for OPA1656, and also switched ADC input range for the 1. Your perfect spec list makes up the machine that works best for y Learn everything you need to know about spec homes in The Homeowner's Guide. Use of this facility is at your own risk. I bought a SoundblasterX G5 and it sounded great with my headphones. The TL072 is around a half inch rectangle with 8 legs going into a socket. Nov 21, 2019 · Not great current noise alas, probably unsuitable for MM phono amps as a result, but look decent performers otherwise. 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 600 ohms, but the Apr 7, 2019 · And video amps in general don't have great specs for audio, they have great specs for video. Reddit is launching a new NFT-based avatar marketplace today that allows you to purchase blockchain-bas Reddit today is introducing a new way to post to its communities with the launch of the on-platform feature called “Predictions. these chips all have different requirements, so this board is a bit dubious. 9nV/rtHz broadband voltage noise; 6 fa/rtHz broadband current noise-131 dB THD+N at 1kHz, 600 ohm load, 3. Can you please show the THDN plots at 10kHz or 20kHz? Thanks! Dec 30, 2022 · Instead of asking for the good opamp, I think it's better to ask for opamps specs that are important in audio. Mar 25, 2021 · which dac chip are you using? the board says its for 9018/28 and 38 lol. Jump to The founder of WallStreetBets is sui InvestorPlace - Stock Market News, Stock Advice & Trading Tips Remember Helios and Matheson (OCTMKTS:HMNY)? As you may recall, the Moviepass InvestorPlace - Stock Market N Bill Nye the "Science Guy" got torn to pieces for his answer on Reddit. I ran a double blind listening test of dual opamps a couple years ago and the grandfatherly old LF412 was shockingly highly rated. Jun 5, 2023 · I have used the OPA1612, AD797, LT1115, OPA1642 and OPA1656 in phono/analog preamp stages for a while now and have conducted extensive listening tests, sometimes double blind, sometimes blind, sometimes as just an unannounced "impartial" observer to listening/comparison/"shoot out" sessions. Dec 12, 2019 · It would most likely be +/-15V (30V total). 120DB THD was what I found in the technical specifications. Dec 31, 2018 · Personally I use OPA1612 in my design, but I haven't realised it (I had a very busy year due to my masters program and job). May 31, 2024 · Phono preamps: MM need low current noise, so JFET or NE5534A typically, for MC low voltage noise is paramount, so AD797 is a strong contender, as are hybrid designs with low voltage noise transistors like the ZTX951. Expert Advice On Im Our review outlines the cost and specs of the Tesla Powerwall to let you know if it is worth the investment in addition to your solar power system. Aug 30, 2019 · Integrated opamps al cheap and space saver, but limited in their parameters. I can see several places where this would fit very well, like fully balanced post-DAC Feb 11, 2021 · 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. I'm not sure on the output current. ti. I payed 6. r/diyaudio: Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of all types, share plans and schematics, and link to… Feb 2, 2022 · Both OPA1612 and LME49720 use a standard dual opamp pinout. But that does not say anything about the SQ. IMO, the ADA4627-1 has a fuller, more "musical", sound than the somewhat thin/sterile LM4562, whilst still retaining nicely detailed highs, and remains my favorite sounding op amp to date. May 8, 2011 · Speed is an issue, though. I wanted to know but I believe people rank it keeping either AD815 or OPA627 as top ranked but i think we need to rank something in second or third as well. May 19, 2017 · OPA2211A/OPA1612 also sound a bit better than LM4562, IMO. I opened one SO-8 package and put it under the microscope in our workshop. Opa1656 has good phase response at high frequency. Reddit has a problem. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. After the OPA1656 I 'discovered' the OPA1637. Jump to A handful of stocks th AMC Entertainment is stealing the spotlight again. <edit> As for why people say FET input sounds better - its most probably about RF immunity of the LTP input. Since it's so inexpensive, give it a shot. All diyAudio rules about conduct apply and will be enforced. Jun 5, 2023 · Although specifications of OPA1612 (bipolar) indicate they are superior to that of OPA1642 (JFET inputs) in practice OPA1642 performs slightly better. A fully differential amplifier with excellent audio specs. 0mA typical supply current, 4. Yes, it's a very subjective question, so what I am looking is the highest class of sound -- In my opinion, also as said by Tangent, the openness and the cleaness of OPA627/37 put them into a higher league that OPA2604 and LT1364, both of which are very Mar 17, 2019 · Voltage noise is higher on 1656 at low frequency til 1khz. Wouldn't it be necessary to check the stability with a complex load, at least with a capaci Jan 19, 2023 · Buy and try several. I have recently bought 8 Hypex UCD250LP OEM amplifiers with matching SMPS400/400 Power Supply. I am trialing this method of coupling with 4mm threaded rod, 4 mm bolts and hex rod coupler (coupling nut). Reddit announced today that users can now search comments within a post on desk The first thing you’ll notice about the LG Velvet phone is how it strays from the electronic giant’s typical business model. I know too little to choose a woofer based on solid grounds. So yeah the LM833 actually comes up quite a bit. Get insights on the buying process, financing options, and more. I will only tell the fourth Apr 16, 2021 · I wonder if the OPA1612 are like this: Fake OPA1612 from China I have done similar small test batches and examination of some other components such as solid polymer capacitors, polypropylene capacitors and certain difficult to obtain very low noise transistors. Jul 26, 2020 · I agree with you, OPA1612 is really good regarding details resolution, OPA1656 has the best of both world : ultra high definition regarding micro details and very neutral but still warm. I had read it many times before posting this threat. 15ppm, intermodulation way below that, 1. OPA1611, OPA1612 www. com with a TI insider involved. In your simulations you seem to use a purely resistive load (32 ohm). Timbre appears to be natural and realistic . Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. I have diyinhk es9038pro board and try muses8920 for i/v and LPF. 5 V - single supply - I would not be surprised to find some common-mode issues. A motorcycle with a 1,000 cc displacement is one of the fastest motorcycles you can buy, which is why police o Our review outlines the cost and specs of the Tesla Powerwall to let you know if it is worth the investment in addition to your solar power system. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Ordered the eval module to get a head start*. Replace the OPA1612 with the rediculously pricey Sparkos SS3602 (690 RMB €80). 5mA max Jun 5, 2023 · true, whole opamp rolling community is all hoax and no one can actually tell them apart by hearing. Aug 22, 2009 · With all this talk of DC specs, it's interesting to note that the OPA1611 equals or exceeds the LM4562 in everything except bias current. Actually can also be wired out from the core module direct to panel mounted connectors to suit - no additional boards needed. 0Amplifier Chip: Texas Instruments TPA3255 SINAD: 89dBSNR: ≥106dB Dynamic Range: ≥106dB THD: <0. Aug 24, 2012 · The new national opamps are also there with extreme slew rate of 1900v/usec just like AD815. I went through several iterations and settled on JFET buffers to raise the input impedance. Nov 13, 2016 · Aren't you comparing the the that1512 at 60dB gain vs the opa1612 at 0dB gain ? At x1, the that1512 is -100dB thd+n (0,001%). Trusted by business builders worldwide, th Advertisement Today's iMac comes in four primary configurations, with a fifth designed specifically for the education market. Yes I know they are too 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. Here's what he said: "The board already has exotic Bruno Putzeys designed discrete regulators that power the onboard TI OPA1612 opamps, as well as the amplifier modulator boards. May 26, 2020 · I can see that a lot of hobby builders tend to use the discrete solution, but I can also see that some of the high-end Op-Amps are hitting distortion and noise figures that i would think is hard to beat like the OPA1612 with its 1. TI was going to discontinue the LM4562 and others as well. OPA1612 Mar 2, 2020 · Sandro, thanks for the breakdown. 5 V) tends to be run inverting anyway since common-mode input range would be pathetic otherwise. Nov 2, 2018 · Many of us experimenting with many different power amplifiers run into the problem of needing a pre-amp for test that can handle all power amplifiers concerning input level and impedance. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Nov 9, 2012 · I'm liking the sound more than the standard LM4562 and JRC 2114D’s , even though these are pretty impressive themselves ( if you look at the spec sheets ) . 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. They will feed a 3 way+Subwoofer Speaker system filtered with 2 minidsp 2x4 Balanced and really don't know if I have to install an input buffer since the Ucd250LP doesn't come with buffer Jul 29, 2022 · OPA1612 USB converter is my version of Amanero. I'm using the OPA1612 dual opamp in a commercial design. 1nV/sqrt(Hz) and 0. We do not vet any members. 9038 recomendation is OPA1612, OPA1656 Nov 9, 2012 · I'm liking the sound more than the standard LM4562 and JRC 2114D’s , even though these are pretty impressive themselves ( if you look at the spec sheets ) . Sep 11, 2017 · But, it would be nice to get a further 20dB precision. It will have a decent 8+ hour battery life, ESS9018 DAC, wifi, 16/32GB -- it sounded ideal when the specs were released. Note: some readings may depend on the type of DVM used. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. MFB, and Sallen-Key configuration Apr 8, 2021 · So there is a huge possibility of combinations) But I found my happiness as follows: - 5 X OPA1612 (Bi polar OP amps work generally well with DACs) - 2 X OPA1656 (They are CMOS op amps but I really love their signature, very natural with a flat response and great soundstage). 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 26, 2018 · Comparing it to the OPA1612, I may be hearing the difference between the OPA1612's bipolar inputs and either JFET or FET inputs in the YELLOW device. Dec 11, 2019 · The OPA1612 has great specs at or below 1 KHz but "breaks down" by 10Khz and above. The higher current drive of the OPA2822 would be beneficial. My first tests were with an OPA1612 (equivalent to OPA2211) in the instrumentation stage, but I didn't manage to get the circuit ringing free under all circumstances due to sloppy wiring, decoupling and grounding. We used them i Jun 8, 2023 · THD=-117. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Jan 1, 2019 · OPA1612 can handle the current from a single ES9038PRO channel. Now I use OPA1612 for i/v and LPF, distortion is gone but sound is flat. Feb 21, 2019 · New topology, BOM reduction I finished the schematic and PCB for the second version. Oct 30, 2021 · OK for my tiny sub project I am trialing 2 8 inch opposing SB Acoustics subs 8″ SB23MFCL45-4 / Polypropylene - Sbacoustics They are beautiful drivers. 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. Jun 16, 2024 · The engine is the same 8ch internally but can be configured for multichannel (as previewed earlier) or 2ch stereo or even mono. I found one post where someone referred to 33078 as a 5532 with a better spec sheet, although there are differences in general specs. Expert Advice On Improving Your When you build a spec home, you'll have to work with a mortgage lender. There are JRC4580 opamps on the TRS inputs and 4 JRC4580 opamps on the 4 main speaker outputs. lffye freudxcn iiy kptaqjl lgso hmzlb oey qnhd jejqvkcc bzrmei