Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!pacbell.com!pacbell!osc!jgk From: jgk@osc.COM (Joe Keane) Newsgroups: sci.electronics Subject: Re: A QUESTION ABOUT OP AMPS Summary: Yes. Keywords: operational amplifier Message-ID: <4746@osc.COM> Date: 19 Apr 91 22:03:19 GMT References: <1991Apr16.131348.9149@uncecs.edu> Reply-To: jgk@osc.COM (Joe Keane) Organization: Versant Object Technology, Menlo Park, CA Lines: 11 The answer to the original question is yes, this is definitely an application for an op-amp. There's not enough information to recommend a specific chip though. I'd say don't use a 741 if you can avoid it, especially if you care about distortion. As a default the LF411 is a good one to use. It can't hurt to stock up on a couple of these. For low noise, low supply current, high output current, or other requirements some other chip would be more appropriate. The PMI SSM chips are quite nice if you want high quality. They're a little harder to find though. -- Joe Keane, amateur electronics hacker jgk@osc.com (...!uunet!stratus!osc!jgk)