HIGH_INPUT_RESISTANCE_DC_VOLTMETER

Published:2009/7/9 22:12:00 Author:May | From:SeekIC

This voltmeter exploits a number of the CA3160 BiMOS op amp's useful characteristics. The available voltage ranges from 10 mV to 300 V. Powered by a single 8.4-V mercury battery, this circuit, with zero input, consumes approximately 500 μA. Thus, at full-scale input, the total supply current will increase by 1000 μA.



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