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Definition of "Chopper Amplifier" |
A high gain low noise precision amplifier that modulates [chops] a DC signal which is then amplified by the AC chopper amplifier, the AC signal is than converted back to DC by peak detection. An OpAmp, FET or Transistor used as an AC amplifier which accepts a signal from a chopper or also serves as the chopper by going in and out of conduction [turning on and off]. |
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