What component of an FET amplifier needs to be at least ten times greater than RD to ensure maximum voltage gain?
A)gm
B)r'ds
C)Rs
D)RS

Question

Quizplus · Accepted Answer

The component r'ds (output impedance of the FET) needs to be at least ten times greater than RD (the drain resistor) to ensure maximum voltage gain in an FET amplifier. This condition ensures that the voltage drop across RD dominates, maximizing the output voltage swing.

What Component of an FET Amplifier Needs to Be at Least