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Analog ElectronicsOperational Amplifiers

An op-amp has an input offset voltage of 2 mV and a closed-loop noise gain of 100. Ignoring other errors, the resulting output offset magnitude is approximately?

  • A2 mV
  • B20 mV
  • C0.2 V
  • D2 V
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Correct Answer: C. 0.2 V
Explanation: Output offset due to input offset is approximately the input offset multiplied by noise gain: 2 mV × 100 = 200 mV = 0.2 V.
Reference: Standard analog electronics: operational amplifiers
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