DIGITAL_VOLTMETER_CIRCUIT

Published:2009/7/16 21:14:00 Author:Jessie | From:SeekIC

A basic digital voltmeter circuit using the Harris Semiconductor ICL7107 is shown. It has a 2-V range. Calibration consists of applying a known voltage of 1.2 V to the input and adjusting R3 for a correct reading on the display. Supply is ±5 V, and S1 selects either the supply voltage or an external reference.



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