High-input-resistance-dc-voltmeter


Posted on Sep 29, 2012    4460

This voltmeter exploits a number of tbe 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 p,A.


High-input-resistance-dc-voltmeter
Click here to download the full size of the above Circuit.

Thus, at full-scale input, the total supply current will increase by 1000 p,A.




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