Question

Which of these is not a type of monostable multivibrator?

(a) Schmitt trigger as a monostable multivibrator

(b) Emitter coupled monostable multivibrator

(c) Using an op-amp

(d) 555 Timer as a monostable multivibrator

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Question is taken from Different Types of Multivibrators in section Multivibrators of Analog Circuits

Answer 1

The correct choice is (a) Schmitt trigger as a monostable multivibrator

The best explanation: A Schmitt trigger circuit is a comparator circuit, also called a regenerative comparator. It converts any waveform into a square wave. It is not a monostable multivibrator, unlike the other three options.