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Comparators & Schmitt Triggers MCQs

Practice Comparators & Schmitt Triggers MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Analog ElectronicsComparators & Schmitt Triggers

A comparator differs from a linear op-amp amplifier mainly because a comparator is normally intended to operate?

  • AWith its output switching between high and low states
  • BOnly with exactly unity negative feedback
  • COnly as an integrator
  • DAt zero supply voltage
Report an error
Correct Answer: A. With its output switching between high and low states
Explanation: A comparator determines which input is larger and normally drives its output toward one of two limiting states rather than operating linearly.
Reference: Standard analog electronics: comparators & schmitt triggers
Question 2
Analog ElectronicsComparators & Schmitt Triggers

The hysteresis of a Schmitt trigger is defined as the difference between its?

  • AUpper and lower switching thresholds
  • BSupply voltages only
  • CInput and output resistance
  • DOpen-loop and closed-loop gain
Report an error
Correct Answer: A. Upper and lower switching thresholds
Explanation: Hysteresis is the separation between the upper threshold voltage and lower threshold voltage.
Reference: Standard analog electronics: comparators & schmitt triggers