Need help with DVM design

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Article #5871

#5871

From: Kory Hamzeh
Date: Wed, 29 Aug 1990 02:55

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I'm trying to design a very small and low-cost dvm and I would like
some assistance. The spec is:

	Voltage:	+/- 19.9
	DIsplay:	3 1/2 or 2 1/2  7 Segment LEDs
	Power Supply:	9 volt battery
	Accuracy:	+/- 0.1 Volts

I am looking at possibly using the National ADD3501 chip, but I
think it's an overkill for what I'm trying to do. Cost and 
simplicity is very important.

I would appreciate any pointers to circuits, chips, or manufacturers.

Thanks in advance,
--kory


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Kory Hamzeh             UUCP: avatar!kory or ..!uunet!avatar!kory
                    INTERNET: avatar!kory@sr.com or kory%avatar@sr.com

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!srhqla!avatar!kory
From: kory@avatar.UUCP (Kory Hamzeh)
Newsgroups: sci.electronics
Subject: Need help with DVM design
Keywords: DVM
Message-ID: <155@avatar.UUCP>
Date: 29 Aug 90 02:55:06 GMT
Organization: Kory Hamzeh, Canoga Park, Ca, USA
Lines: 22