Moderate

Differential amplifiers are used in______________?

Correct answer: A. Instrumentation amplifiers

  • A. Instrumentation amplifiers
  • B. Voltage followers
  • C. Voltage regulators
  • D. Buffers

Explanation

An instrumentation amplifier is built from differential-amplifier stages so it can amplify the voltage difference between two inputs while rejecting common-mode signals. Voltage followers and buffers are usually single-stage applications of op-amps.

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