If the input to a comparator is a sine wave, the output is a

This question was previously asked in
LPSC ISRO Technical Assistant Electronics 07 Aug 2016 Official Paper
View all ISRO Technical Assistant Papers >
  1. ramp voltage
  2. sine wave
  3. rectangular wave
  4. saw tooth wave

Answer (Detailed Solution Below)

Option 3 : rectangular wave
Free
ISRO Technical Assistant Mechanical Full Mock Test
2.7 K Users
80 Questions 80 Marks 90 Mins

Detailed Solution

Download Solution PDF

The comparator of the op-amp does not contain any feedback and it will generate a rectangular wave at the output with saturation voltage levels when the input is a sin wave.

When V+ > V- the output is + Vsat 

when V+ < V- the output is - Vsat 

Thus a rectangular wave is produced at the output by driving the op-amp into saturation.

F1 S.B Deepak 15.02.2020 D9

The output waveform for an applied sin wave is as shown:

F1 Neha Madhu 10.10.20 D5

Latest ISRO Technical Assistant Updates

Last updated on May 30, 2025

-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website. 

-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.

-> A total of 83 vacancies have been announced for the post of Technical Assistant.

-> The Selection process consists of a written test and a Skill test.

-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection. 

Get Free Access Now
Hot Links: teen patti casino teen patti jodi teen patti all app teen patti wealth teen patti master download