40 TOP SPECIAL-PURPOSE OP-AMP CIRCUITS Online Test – Questions and Answers 1. Circuits that shift the dc level of a signal are called clampers limiters peak detectors dc converters 2. An instrumentation amplifier has a high CMRR output impedance power gain supply voltage 3. The primary function of the oscillator in an isolation amplifier is to produce dual-polarity dc voltages for the input to the demodulator convert dc to low-frequency ac convert dc to high-frequency ac rectify high-frequency ac to dc 4. In the classic three-op-amp instrumentation amplifier, the differential voltage gain is usually produced by the second stage first stage mismatched resistors output op-amp Loading … Question 1 of 4
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