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A voltage follower is used as 1. An isolation amplifier 2. A buffer amplifier Which of the above statements is/are correct?

A voltage follower is used as 1. An isolation amplifier 2. A buffer amplifier Which of the above statements is/are correct? Correct Answer Both 1 and 2

Voltage follower:

  • A voltage follower is an op-amp circuit whose output voltage straight away follows the input voltage. i.e. output voltage equivalent to the input voltage.
  • The Op-amp circuit does not provide any amplification thus, its voltage gain is unity.
  • The voltage follower is used as a buffer amplifier, isolation amplifier, unity gain amplifier as the output follows the input.
  • The voltage follower provides no alternation or no amplification but only buffering.

 

Characteristics:

  • High input impedance
  • Low output impedance
  • Current Gain & power gain high
  • Voltage gain unity

Related Questions

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