Chapter 7, Problem 7.12EP

For the circuit in Figure 7.55, the transistor parameters are $K_n\text{=0}{\text{.8mA/V}}^2$ , $V_{TN}=2\text{V}$ , $\lambda =0$ , $C_{gs}=100\text{fF}$ , and $C_{gd}=20\text{fF}$ . Determine (a) the midband voltage gain, (b) the Miller capacitance, and (c) the upper 3dB frequency of the small−signal voltage gain. (Ans. (a) $A_{\upsilon }=-6.69$ , (b) $C_M=167\text{fF}$ , (c) $f_{3dB}=1.32\text{GHz}$ )

Figure 7.55 Figure for Exercise Ex 7.12