Chapter 11, Problem 11.76P

Consider the diff-amp that was shown in Figure P11.63. The circuit and transistor parameters are $V^{+}=2.8\text{V},V^{-}=-2.8\text{V},I_Q=120\mu \text{A}$ $K_n=K_p=0.2\text{mA}/{\text{V}}^2,V_{TN}=+0.3\text{V},V_{TP}=-0.3\text{V},$ and ${\lambda }_n={\lambda }_p=$ $0.025{\text{V}}^{-1}.$ (a) Determine the differential-mode voltage gain. (b) What is the output resistance of the diff-amp? (c) What is the maximum common mode voltage that may be applied?