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Analog ElectronicsDifferential Amplifiers

A differential amplifier has differential gain Ad = 2000 and common-mode gain Acm = 0.2. Its CMRR is?

  • A100
  • B1000
  • C10000
  • D20000
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Correct Answer: C. 10000
Explanation: CMRR = Ad/Acm = 2000/0.2 = 10000.
Reference: Standard analog electronics: differential amplifiers
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