The volume control in a hi-fi amp or preamp (or any other audio device, for that matter), is a truly simple concept, right? Wrong. Extra cost doesn't necessarily get you an opamp that will sound 'better' than another, so use whatever you are most comfortable with. There are hundreds of different types, some outrageously expensive, others very cheap. The above isn't comprehensive, and is but a small group. LM4562 - One of the few that's actually better than the NE5532.
NE5532 - Still one of the best audio opamps around.TL072 - FET input, cheap and cheerful, but they suffer an output polarity inversion if overdriven.Typical opamps that are commonly used for audio include. Some don't care for high loading (low impedances) and will show relatively high distortion, and others may be noisy. Differences are certainly measurable, but all standard opamps have response that's flat to DC. Depending on your application, you'll use something cheap and cheerful (such as a TL072 for example), or you may want to go 'up-market' and use the LM4562, OPA2134 or something more exotic if it makes you feel better.ĭespite the many claims to the contrary, there are no opamps that will improve bass 'authority' (whatever that's supposed to mean), nor will they be bass shy, cause 'veiled' top end or any of the other rather remarkable claims you will see on the Net. Feel free to use the opamp of your choice in each case. No type number has been shown, but industry standard dual opamps are assumed for the pinouts. Some of the following circuits use opamps. 2 - Further Ideas, Active Volume (Baxandall).1 - Better Volume Control ('Fake' Log Law).*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information. The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.įounded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world. STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.
Low Power J-FET DUAL OPERATIONAL AMPLIFIERS LOW POWER J-FET DUAL OPERATIONAL AMPLIFIERS LOW NOISE J-FET QUAD OPERATIONAL AMPLIFIERS
LOW NOISE J-FET SINGLE OPERATIONAL AMPLIFIERS LOW NOISE J-FET DUAL OPERATIONAL AMPLIFIERSĭUAL LOW-NOISE J-FET INPUT OPERATIONAL AMPLIFIERS Low noise J-FET dual operational amplifiers
0 kommentar(er)
