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Analog ElectronicsDifferential Amplifiers

Using a current-mirror active load in a differential amplifier can convert the differential collector currents into?

  • AA useful single-ended output current
  • BA fixed DC supply voltage
  • CA digital clock only
  • DZero output current for every input
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Correct Answer: A. A useful single-ended output current
Explanation: The mirror redirects one branch-current variation and combines it with the other branch, producing a single-ended output with enhanced gain.
Reference: Standard analog electronics: active-load differential amplifier
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