Opa2134 vs tl072. In most pedals where a dual op amp is needed I feel the TL072 does a good or even great job though. The bipolar transistor inputs of the NE5532, on the other hand, draw input current and are not the same as the JFET inputs of the TL072, which have no input current. We get lower current noise and better EMI resistence. Nov 8, 2006 · OPA2134 is more stable, as it is not too fast for Audio. Other op-amps would likely perform poorly in the circuit. Wampler has a great video comparing different op amps in a clipping circuit that you can look up on YouTube if you like. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. I'd suggest a bipolar - like NE5532. noise vs current draw. It’s nearly 12 dB worse than the NJM part which is fairly huge—especially considering the TL072 is more expensive (about $0. By all accounts, that's one leaky input. May 25, 2018 · Part Number: INA129 Other Parts Discussed in Thread: OPA2134, , INA128, TL072, TINA-TI Hello. Jan 23, 2014 · OPA2134 seems much better but the downside is that they take about twice the current and need much more careful decoupling. It always makes me giggle when I think of the hundred or so 5532's a recording passed through before making it to any format and then someone says they sound like crap in this last piece of equipment on which they are listening. Now all the folks are using opa2134 op -amps as the replacement. The LF353 was even worse in this respect. Mar 15, 2014 · Could very well be. TL072 Pinout Jun 13, 2016 · ポータブルアンプのオペアンプ、オペレーションアンプの交換の実験です。なかなかオペアンプの聴き比べは手間がかかるもの、今回は安価な価格帯のオペアンプから、様々な聴き比べをしていきます。 Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. ナチュラルビューティー。脚色がほとんどない、いわば素肌美人である。音の抜けが良く、ジャンルを問わず使える感じ。超高域の解放感はもう一歩か。でも、充分リファレンス用途までいける。単価も音質の割に破格と言っていいだろう。 Sep 20, 2011 · So with the higher power, the more heat it will generate. You'll have to try it out and listen. It has way more drive capability than TL072 which is about the wimpiest audio opamp I've come across for load tolerance. Even the relatively humble TL072 can sound very good when its fed the cleanest, lowest impedance power. And it is a JFET opamp, which is always preferred by myself in the positions where slightly higher voltage noise of the opamp is negligible, like here. 4mA typ per amplifer but noise is higher at 18nV / rt Hz than the OPA2134's 8nV / rt Hz although lower than the 062's 42 nV / rt Hz ( with it's 200uA typ per amplifer Icc ). Practice suggests that TL072 is a good compromise choice. Aug 24, 2011 · The TL072 is one of the most popular op-amps, having very-high-impedance inputs, with effectively zero bias and offset currents. TL072 VS NE5532. Everything is working except it appears that high-shelf cut is being created (~9 dB at 10 kHz) (measured with pro audio interface using REW). When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. OPA2134 is more used and more liked, than almost any other JFET op ( Maybe still TL072 is most used, but it is far from OPA2134 in quality )-----OPA2134 is probably the most used DIY Audio op, all categories. Just yesterday I compared a couple of dual op amps in a modded TS808 circuit and in the end liked the TL072 and RC4558 the most. Same with the OPA627 though. THD+N level of all right channels is almost identical at -94 dBV. It offers exceptional performance in almost any audio application. Part Number: OPA2134 Other Parts Discussed in Thread: OPA1678, OPA1611, OPA1602, OPA1642. Feb 1, 2006 · OPA2134 is a far easier drop-in replacement for the TL072. 2: Uses: The TL072 is commonly used in various applications, with frequent application in audio mixers and preamplifiers. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. The 60 hz spike is back which has me wondering if FET inputs and EMI susceptibility go together (see the FET OPA2134 above): 高音質電源改善アクセサリーを中心に、音響を中心に電気で世の中に貢献しています。 May 16, 2016 · By comparison, the TL072 showed HF ringing effects on the burst tests - this could probably account for the "different" sound of that type of device. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. I have a 1988 carver stereo per-amplifier. Apr 26, 2014 · TL072: 1T (= 1000000000k or 1 billion k) Input bias current: NE5532: 200nA = 200000pA TL072: 65pA So, the 5532 has input impedance 3 million times lower, and bias current about 3000 times higher, than 072. If I have any inspiration, I'll post it. When a FET is required, the OPA2134 is a better replacement for the TL072. I use a EMG amplifier circuit. Nov 7, 2023 · I’d probably use the TL072. 4kHz bandwidth Here we see that the LM4562, LM833, LM49720 and OPA2134 all have the same level of performance with the NJM2742 having the worst performance of the bunch and the LT1352 being just slightly worse. But its the same old Coke vs Pepsi,Tastes great,Less filling debate. Using hd600s and 400is to test them Ive compared the Jun 8, 2009 · They are low power (the LM358 uses 40% of the current of a dual TL072) but have severe crossover distortion and have a response to only 2kHz (the TL072 has very low distortion and goes to 100kHz). TL071/2 is lower current at 1. The OPA2134 is a Dual Package Operational Amplifier, meaning it has two Op-Amps inside it and each Op-Amp can be used independently. Aug 23, 2017 · There are some major differences between OPA2134 and TL072; for one, since OPA2134 has unity-gain bandwdth of 8MHz vs 3MHz in case of TL072, there is a significant difference in the typical quiescent current: 4mA vs 1. Sep 30, 2010 · But the "new" 2134 case fits the 072 build to the T - and I am willing to bet my last dirty PJ that this is a counterfeit TL072 re-marked as a OPA2134. Aug 28, 2023 · NE5532 vs TL072: What are Differences and How to Choose 2023. My guess is that you won’t notice a difference. The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. NE5532 Pinout. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. The OPAx132 is the slightly better version for DC critical applications. I think I used TL072 in my KOT clone. Where to use OPA2134 Op-Amp. Jul 29, 2002 · Haha, in fact, it makes you wonder if a "better" opamp will yield just as much (or more) improvements over Burson. Since i couldnt find an opa2134, i just use tl072 and the likes for our projects I am just curious how opa2134's output performance. The LF353 and TL072 are pretty much interchangeable and both about as old as dirt. It seems to miss a certain slam I had with the opa2132, might be because of the lower output current it can supply, 16 vs 40mA. Sep 7, 2024 · G'day all, an interesting thread. If you want to reopen this topic Dec 8, 2021 · Note: Complete Technical Details can be found in the OPA2134 datasheet given at the end of this page. From what I understand the 353 has a better GBW. Nov 26, 2012 · for good info on guitar pickups' electrical parameters: UIUC Physics 498POM Guitar Pickup Measurements I doubt there is a lot better noise performance possible with the hi R pot as source the TL072 input noise V ~ 16 kOhm equivalent ~ 3 dB noise figure at higher source Z the V noise of the op amp is even less important and the noise figure can at best only asymptotically approach 0 dB Mar 19, 2014 · TL072 VS NE5532 . Mar 5, 2007 · Btw, my favorite Opamps are NE5532, MC33078, OPA2134 and if it really needs more I go for AD8022/8066, more power comes from AD8397. exponential converters - but that will also be happy handling audio if needed. Both are good opamps for the price, and I prefer either of them over the NE5532. Sep 11, 2013 · Quote from: wavley on September 12, 2013, 04:35:04 PM Of course a lot of audiophools dislike the 5532, but it's an honestly good op amp. The OPA2134 sounds more precise and neutral. LM4562 vs TL072 and NE5532 Aug 16, 2024 · So I've changed TL072 op-amp to OPA2134 on ART Tube MP V3 preamp. Feb 12, 2007 · When used in a buffer application I think the TL072 sounds more laid back, perhaps a tad too smooth. It was recently re-capped and all new guts put in . That would also make sense of the measurements. Oct 30, 2022 · As the TL072 is an op-amp with FET input stages, it is wildly different from the other op-amps that have BJT inputs. I don't like OPA2134 much, so something like AD8620 would have been another good comparison to Burson. The two versions of the DUSG I tested were: 1) OPA2134 where the schematic shows LF353; LF353 where it shows TL072 2) TL072s all the way. In the circuit i use INA128 as In-Amp and TL072 as Op-Amp. May 24, 2015 · The OPA2134 is more a better replacement for the TL072 when you need a FET type. I'd like to find a 3rd choice for critical/precision DC circuits e. OPA2134 doesn't quite have this advantage but has other good points. the TI's LME49860, LME49720. This is probably not a decision to lose sleep over 😊. The two THD plots in Figures 4. You need to pay attention to the last letters, they represent the PDIP package. I think the OPA2134 is easily surpassed by Nov 10, 2006 · Should point out that in the late 70's, early 80's, the pukka Broadcast Desk makers, Calrec, Neve, SSL used TL072 when low current (compared to 5532) was needed rather than HiZ. So none of them are direct replacements as the resistances are so large and more suitable for the TL072. g. May 30, 2007 · If the orginal OP is a FET (like TL072, OPA2134 etc) we may be careful sometimes NOT possible to replace with Bipolar (like NE5532 etc). It may or may not sound at all noticeably better than a TL072, it depends on the circuit and application. I may blow a few more but I've got boxes of TL0xx to play with. 2. The JFET input devices give their best noise performance at medium impedances, in the range 1–10 kO. The audio pre-amplification means for getting output audio with low noise, interference, distortion and also used for controlling the volume, bass and treble. JFET入力のOPAMPの定番といえばTL072だとおもうが、セカンドソースのNJM072は特性が同じというわけではなく、性能を向上させているそうだ。 入力インピーダンスの高いOPAMPを使いたいとき選択に迷うので、手持ちのJFET入力のOPAMPの中でいくつか比較してみた。 Aug 24, 2018 · THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. Hi Team, My customer wants to TL072 is another well-known operational amplifier that is frequently compared to the NE5532 in order to determine which is quieter. High slew rates, low input bias and offset currents, and a low offset voltage temperature coefficient characterize the devices. Plus, I don't know how it will affect other parts in the circuit, and if this will cause a chain meltdown. 5532 are BJT and tl072,opa2134 are JFET input. Also with some Keller Williams live recordings (Live at the Vic Theatre, Chigaco, 2002), the sound seemed to be quite far away, as if you were listening to small speaker box 2m in front . If anything, it has a more 'neutral' sound than the (possibly slightly euphonic) OPA2134, but its performance is very reliable and dependable and of a very high standard, which possibly explains its long standing use in 'professional' audio gear. opa2134. Nov 25, 2004 · i. Hi there probaly a simple question maybe not. The bipolar inputs are very touchy concerning DC offsets and such, the JFETs are not as touchy and can be used without DC coupling caps in many cases. ••• Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. When a FET type is required, the OPA2134 is a better alternative than the TL072, It's possible that this is the case with low-frequency filters. The TLE2072 costs so much more than a TL072, I don't think the bang-for-your-buck is there and the OPA2134 comes in significantly better for THD and line driving and isn't that much more expensive than a TLE2072. Goggle bill d mod carver c-1. OPA2134 vs TL072? You have been banned from this forum. The NE5532 and the LM833 performed pretty much as well as the 4558, except with a slightly lower noise floor and with a slightly "spikier" recovery from Jan 8, 2017 · Below are THD+N vs. A Jul 30, 2016 · The 2132 (first test) or TL072 (second test) is the integrator in both cases. Opa2134 is a very good opamp. Another way to say it: JFET OPamps like OPA2134 can replace most any other audio opamp Dec 4, 2017 · TL072 is mainly used where high-accuracy is needed with respect to low harmonic and noise, as used for audio pre-amplification. Are you suggesting it is the 353 vs TL072 that is the issue here? ANOTHER EDIT: Oh my goodness I am losing my mind. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. Aug 24, 2011 · The OPA2134 does not show phase reversal anywhere in the common-mode range, which immediately marks it as superior to the TL072. 2700ohm is way too low a load to get decent sound from a TL072 but an NE5532 won't much notice providing its well decoupled. Moreover, It offers low noise and a high gain bandwidth product, making it suitable for audio applications and signal conditioning. Thread starter WhiteRhino; Start date 2014-03-19 10:19 am; Status This old topic is closed. To turn a TL072 into a TL071 make an adapter that connects one of the opamps in the TL072 to pins 2, 3, and 6 and the power supply to pins 4 and 7. I feel confident in replacing a TL072 with an OPA2134 as the DIY community accepts that this is a safe swap. I no nothing about this. Although many people consider the NE5532 to be an old component and try to find a new one to replace it, the NE5532 is still adequate for most applications. In this article, we will delve into the Published: 2023-08-18 18:01:28 Mar 25, 2022 · The NE5532 is usually a better choice than a JFET OPA2132 / OPA2134 if you can utilize a bipolar OP. THD+Noise vs Frequency OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. The (much) improved specs on the 2134 probably won’t show up in a low pass and you can save $$ for using the better opamp where it will make more difference. amplitude for all opamps (with 560 ohm shunt resistors). Jan 11, 2016 · Yes sir. As a result, the NE5532 is three times quieter Gibson Les Paul Studio - ADA MP-1 tube preamp /JJ ECC83/ - H&K RedBox MKIII - Audigy ZS2 SoundCard Jun 10, 2010 · Tle2072 is a pretty much direct replacement for TL072. it boasts a 40u/vs slew. Tl074, Tl072, LM358, LM338 . The TL072 is a high-speed J–FET input dual operational amplifier with well-matched high voltage J–FET and bipolar transistors in a monolithic integrated circuit. Just for fun I swapped a tl072 for a 5532 in a baffle step filter to see if I could hear a difference. Right now - the TLE2142ID is looking like a good choice. Please contact the webmaster or board administrator for more information. 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. Of course I got the thing working with TL072 and all is running fine at the moment. TL072 works most of the time but I almost always find a better substitute in dirt pedals. e. Jun 9, 2015 · Not sure why it would need to be a JFET type here - the impedances are low. OPA2134 Equivalent Op-Amp. Feb 8, 2022 · The NE5532 is a Bipolar Input op-amp, whereas the OPA2134 is a FET Input op-amp. Aug 1, 2011 · TL072 NOISE: The TL072’s FET inputs and ancient design really show here. ••• Apr 7, 2007 · Ok, no chip without drawbacks. 36 and 4. 37 show the device working at a gain of 3× in both shunt and series-feedback modes. But testing and stabilising is not the concern here. ••• Feb 26, 2020 · I don't normally notice much difference between chips and will happily use a TL072 where the circuit calls for a JRC 4558/9 or whatever I don't think it really makes much difference. Jul 22, 2022 · I like JRC4558DDs in Tubescreamers but hate them in something like a Guvnor or Crunchbox. Take a look at ebay - you should now be able to spot these fake duds just from looking at the pictures. Nov 25, 2015 · Im interested in op amp rolling for my amp since its not expensive to try out and I was surprised to find a lot of variation between them, the amp has a very simple circuit so my results could be more siginificant than with other amps. Mar 30, 2012 · OPA2134PA is the direct replacement, being a j-fet OpAmp as TL072. In fact, dual OPA627 on Browndogs would have been something to consider as well. The TL07x opamps have a problem called "phase inversion" where the output suddenly inverts when an input goes lower than the allowed common-mode Nov 30, 2021 · OPA2134: OPA2134 VS OPA1656. The NE5532 and TL072 are two prominent operational amplifiers (op-amps) that have earned their place in the world of electronics for their versatile performance and widespread applications. Noise level is basically the same in LM4562 and NE5532, while OPA2134 is 2 dB weaker. Tom Mar 21, 2022 · TL072 Overview. But a few days ago I built myself a dual OD with a couple of Rockett style ODs in there and used JRC4558s in it. It also has Aug 26, 2018 · opa2134：纵向声场宽广，低频下潜不错，量感一般，高频解析力好，但是有一点毛剌，不够柔和。推荐度：★★★☆ opa2111：中频非常舒服，高频柔和，但低频比ad712还弱，声场很窄，没有传说中那么好。推荐度：★★☆ If getting the best sound is your primary aim then the lowest hanging fruit for me in every single piece that I've modified has been power supplies, not opamps. Oct 8, 2017 · I guess what puts me in a dilemma is that Burr Brown branding behind the well known OPA2134 vs. Left channel is 5-10 dB better but there is also more variance between boards/opamps. OPA2134 is great for buffer and clean applications but I never liked it for overdrive/distortion. I would configure the remaining opamp in the TL072 as a buffer and ground its input just so it doesn't chatter or does anything irrational. If I were going to all the trouble of swapping them out I would make it worth while and do the OPA2134 or similar LT part. Could anyone help me troubleshoot which part/cap might have brought this problem? Mar 13, 2023 · A TL072 is two TL071 in one package. Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. Jul 7, 2024 · Working: The TL072 is a dual Op Amp IC that operates as a voltage amplifier. 60). Jun 26, 2005 · JRC4558: Maybe a bit punchier -- nominal difference from the LM1458 TL072: Maybe a bit thin -- nominal difference from the LM1458 Lesson I learned: LM1458 op amps are the cheapest around, they work find in my amp -- put them in and forget them. I just thought using two opa627, i will achieve 2134's audio quality. 4mA, respectively. Jan 21, 2007 · You have to look at each part's input devices. Use a socket and try a few out. This may be the case with low frequency filters. Op amps are super cheap. Also, if you use SOIC (D) package, TL072 thermal resistance is 97C/W vs 150C/W in case of OPA2134. The TL072 is my current workhorse and I use the OPA2134 in critical audio applications when I need to. lkixriuckegkbgozydfmkexjwvmwbwqdxhkwxtairnbzsfamhybriu
