Q. An ideal operational amplifier has

A
Infinite output impedance
B
Infinite bandwidth.
C
Zero input impedance
D
All of the above
Solution:
  • An ideal operational amplifier has infinite input impedance, infinite open-loop gain, zero output impedance, infinite bandwidth, and zero noise.
  • It has positive and negative inputs which allow circuits that use feedback to achieve a wide range of functions.
  • There are no bandwidth limitations in an ideal op amp.
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