Ideal maximum voltage for common drain amplifier is_________(a) 0(b) 1(c) 0.5(d) 2The question was posed to me in examination.This intriguing question originated from A Generalized FET Amplifier topic in chapter Field-Effect Transistors of Electronic Devices & Circuits

Ideal maximum voltage for common drain amplifier is_________(a) 0(b) 1

1.	Ideal maximum voltage for common drain amplifier is_________(a) 0(b) 1(c) 0.5(d) 2The question was posed to me in examination.This intriguing question originated from A Generalized FET Amplifier topic in chapter Field-Effect Transistors of Electronic Devices & Circuits
Answer» Correct answer is (b) 1 Easy explanation: SIMILAR to the transistor EMITTER follower, the source follower configuration itself provides a high level of buffering and a high input impedance. The ACTUAL input resistance of the FET itself is very high as it is a field EFFECT device. This means that the source follower circuit is able to provide excellent performance as a buffer. The voltage gain is unity, although current gain is high. The input and output signals are in PHASE.

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