Re: Op amp configuration question

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Article #11046

#11046

From: C.M. Hicks
Date: Fri, 06 Nov 1992 12:11

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ah335@cleveland.Freenet.Edu (Richard Banks) writes:

>I'm building a circuit where I need high gain.

>I was going to get two single op amps and send the output of one
>to the input of the other one.

>But would it be possible for me to just get a dual op amp IC
>and send the output of one to the input of the other on the same chip?!

Yes, a dual op-amp is identical with two single op-amps, just with shared
power pins. A dual may in fact be better, since the two amplifiers will
be at exactly the same temperature. It may be possible to use this fact
to reduce thermal drifts etc. - difficult to say without more info on the
specific application.

Christopher Hicks (cmh@uk.ac.cam.eng)

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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!spool.mu.edu!agate!doc.ic.ac.uk!uknet!cam-eng!cmh
From: cmh@eng.cam.ac.uk (C.M. Hicks)
Newsgroups: sci.electronics
Subject: Re: Op amp configuration question
Message-ID: <1992Nov6.121128.15045@eng.cam.ac.uk>
Date: 6 Nov 92 12:11:28 GMT
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