Common Source MOSFET Amplifier Calculator

Common Source MOSFET Amplifier Calculator

Calculate the small-signal voltage gain of a common source MOSFET amplifier.

Step 1: Enter Circuit Parameters

Example: 0.002 S (2 mS)

Example: 10000 \(\Omega\) (10 kΩ)

Enter 0 if a bypass capacitor is used.

If \(R_S = 0\): $$ A_v = -g_m \, R_D $$

If \(R_S > 0\): $$ A_v = -\frac{g_m \, R_D}{1+g_m \, R_S} $$