Consider the circuit shown in Figure P11.11. The circuit and transistor parameters are (V^{+}=+3 mathrm{~V}, V^{-}=-3 mathrm{~V},

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Consider the circuit shown in Figure P11.11. The circuit and transistor parameters are \(V^{+}=+3 \mathrm{~V}, V^{-}=-3 \mathrm{~V}, R_{C}=360 \mathrm{k} \Omega, I_{Q}=12 \mu \mathrm{A}\), \(\beta=60, V_{E B}\) (on) \(=0.6 \mathrm{~V}\), and \(V_{A}=\infty\). The output resistance of the current source is \(R_{o}=4 \mathrm{M} \Omega\).

(a) Determine the \(Q\)-points of the transistors for \(v_{1}=v_{2}=0\).

(b) Determine the differential- and common-mode voltage gains for (i) \(v_{O}=v_{C 1}-v_{C 2}\) and (ii) \(v_{O}=v_{C 2}\).

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