For the class-B output stage shown in Figure P8.24, the bias voltages are (V^{+}=12 mathrm{~V}) and (V^{-}=-12

Question:

For the class-B output stage shown in Figure P8.24, the bias voltages are $V^{+}=12 \mathrm{~V}$ and $V^{-}=-12 \mathrm{~V}$. The load resistance is $R_{L}=50 \Omega$, and the transistor parameters are $V_{T N}=V_{T P}=0$ and $K_{n}=K_{p}=4 \mathrm{~mA} / \mathrm{V}^{2}$.

(a) Plot $v_{O}$ versus $v_{I}$ for $-10 \leq v_{I} \leq+10 \mathrm{~V}$.

(b) What is the voltage gain, $A_{v}=d v_{O} / d v_{I}$, at (i) $v_{I}=0$, (ii) $v_{I}=1 \mathrm{~V}$, and (iii) $v_{I}=10 \mathrm{~V}$ ?

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