If gm = 5000 μS in Fig. 32-13, what is the output voltage?

Question

If [latex]g_m[/latex] = 5000 [latex]\mu[/latex]S in Fig. 32-13, what is the output voltage?

Accepted Answer

The ac drain resistance is

[latex]r_d = 3.6 K \Omega \parallel 10 K\Omega = 2.65 K\Omega[/latex]

The voltage gain is

[latex]A_V= (5000\mu S )(2.65 K\Omega )=13.3[/latex]

The output voltage is

[latex]v_{out}= 13.3 (1 mV p-p)= 13.3 mV p-p[/latex]

Question 32.2: If gm = 5000 μS in Fig. 32-13, what is the output voltage?