The input to op amp open loop comparator is a sinusoidal signal,

The input to op amp open loop comparator is a sinusoidal signal,
| The input to op amp open loop comparator is a sinusoidal signal, the output of the comparator is:

A. Square wave

B. Sine wave 

C. Cosine wave

D. Triangular wave

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

  • An analog comparator has two inputs. One is a constant reference voltage VR and the other is time-varying signal Vi and one output Vo.
  • When the non-inverting voltage is larger than the inverting voltage the comparator produces a high output voltage (+Vsat).
  • When the non-inverting voltage is less than the inverting voltage the comparator produces a low output voltage (-Vsat).