Which among the following is an incorrect characteristic of an ideal Op-Amp ?

Which among the following is an incorrect characteristic of an ideal Op-Amp?


A. Infinite CMRR & Slew Rate
B. Infinite Voltage gain
C. Infinite Bandwidth
D. Infinite output offset voltage when input voltage is zero

Correct Answer : D. Infinite output offset voltage when input voltage is zero.

Explanation :

An ideal Op-Amp has an infinite CMRR, Slew Rate & Bandwidth. But, the output voltage is absolutely zero when the input voltage is zero. All the mentioned parameters tend to infinity except output voltage & resistance so that it becomes feasible for an output to drive infinite number of other devices.
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