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- Path: sparky!uunet!pipex!warwick!uknet!edcastle!dcs.ed.ac.uk!adk
- From: adk@dcs.ed.ac.uk (Andrew Kennedy)
- Newsgroups: sci.electronics
- Subject: Re: Op amp configuration question
- Message-ID: <Bx8Ms1.MGy@dcs.ed.ac.uk>
- Date: 5 Nov 92 10:07:13 GMT
- References: <1d9kjtINNna1@usenet.INS.CWRU.Edu> <1992Nov05.043724.130701@zeus.calpoly.edu>
- Sender: cnews@dcs.ed.ac.uk (UseNet News Admin)
- Organization: Department of Computer Science, University of Edinburgh
- Lines: 21
-
- In article <1992Nov05.043724.130701@zeus.calpoly.edu>, mruddick@joule.elee.calpoly.edu (Michael Ruddick) writes:
- > Be careful...you should only have to use one op-amp for what you are doing.
- > It sounds like you want the op-amp to amplify your signal as much as
- > it can, then pass it to another one that does the same thing. Op-amps
- > don't work like that...just use a standard non-inverting op-amp configuration
- > and set your gain...if you set it too high, then the output will just switch
- > back and forth between the two supply voltage rails --> high amounts of
- > distortion!
-
- yes, but for high frequency, high gain work, you need several low gain devises, as
- the bandwidth drops of at HF, so you only get (eg) x10, so for x200 you need 3 amps
-
- regards
- Andrew
-
- --
- / \ | | Andrew Kennedy - First Year Student - BSc (hons) AI & CS
- / \ | | Edinburgh University - And these are my opinions (c) 1992
- / /\ \| | ----------------------------------------------------------
- | __ | | "Continuity was an AI, and adk@dcs.ed.ac.uk
- |__| |__|__| AIs did things like that..." akennedy@nyx.cs.du.edu
-