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Analog ElectronicsOperational Amplifiers

The power-supply rejection ratio (PSRR) of an op-amp indicates its ability to reject?

  • AChanges or noise on the supply voltages
  • BDifferential input signals
  • CAll output load current
  • DFeedback resistor tolerance only
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Correct Answer: A. Changes or noise on the supply voltages
Explanation: High PSRR means variations on the power rails cause relatively little input-referred or output error.
Reference: Standard analog electronics: PSRR
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