A simple BiCMOS amplifier is shown in Figure P13.48. The MOS transistor parameters are \(k_{p}^{\prime}=40 \mu \mathrm{A} / \mathrm{V}^{2}, V_{T P}=-0.4 \mathrm{~V}, \lambda=0\), and \((W / L)_{1,2}=50\), and the bipolar transistor parameters are \(V_{B E}(\) on \()=0.7 \mathrm{~V}, \beta=120\), and \(V_{A}=\infty\).

(a) Design the circuit such that \(I_{C Q}=300 \mu \mathrm{A}\) and \(v_{o}=0\) for \(v_{1}=v_{2}=0\).

(b) Determine the small-signal differential voltage gain of the first stage \(A_{d}=v_{o 1} / v_{d}\).

(c) Find the small-signal voltage gain of the second stage \(A_{2}=v_{o} / v_{o 1}\).

(d) Determine the overall small-signal voltage gain \(A=v_{o} / v_{d}\).

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Vd 0- Rp V+= 3 V +4=300 A RC M M 2 www Fol www Rp. V=-3 V Figure P13.48 RE= 0.4 KS2