題組內容

4. A CS amplifier circuit is shown in Fig. 4, where the NMOS transistor is biased to have \(g_m=1 \text{ mA/V}\) and \(r_o=100 \text{ k}\Omega\). If \(C_{gs}=1 \text{ pF}\) and \(C_{gd}=0.2 \text{ pF}\). Please find

(d) upper 3 dB frequency \(f_H\).