Abstract
The dynamic cancellation algorithm of the temperature error of the chopped-stabilized amplifier (modulation-demodulation (MDM) amplifier) is described. The digital voltmeter, which is based on this algorithm, features a sensitivity threshold of 0.1 nV, when the time constant is 850 s, and the temperature drift of the bias voltage is 40 pV/°C in a 400-μV dynamic range.
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