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Circuit for measuring PC-Based voltage

Posted: 18 Dec 2008  Print Version  Bookmark and Share Subscribe

Keywords: PC voltmeter  A/D converter  MAX1246 

[Summary of tips] In its simplest form, the PC voltmeter consists of a 4-channel, 10-bit A/D converter (IC2) with a few passive components, connected to the PC printer port via a 25-pin male D-type connector. Power is derived from pins 2 and 3, and the circuit draws about 1mA. IC2's wide power-supply range (2.7V to 5.25V) allows operation from a......
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