kory@avatar.UUCP (Kory Hamzeh) (08/29/90)
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.comJeff.Miller@samba.acs.unc.edu (BBS Account) (08/29/90)
Intersil comes to mind as a good source for DVM chips. They have a certain chip that I can almost remeber the number of (7106?) that found its way into nearly every cheap DVM you opened up. They have many chips along this line, I think. -cornhead