Consider the source follower circuit in Figure P4.37 with transistor parameters (V_{T N}=0.8 mathrm{~V}, k_{n}^{prime}=100 mu mathrm{A}

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Consider the source follower circuit in Figure P4.37 with transistor parameters \(V_{T N}=0.8 \mathrm{~V}, k_{n}^{\prime}=100 \mu \mathrm{A} / \mathrm{V}^{2}, W / L=20\), and \(\lambda=0.02 \mathrm{~V}^{-1}\).

(a) Let \(I_{Q}=5 \mathrm{~mA}\). (i) Determine the small-signal voltage gain. (ii) Find the output resistance \(R_{o}\).

(b) Repeat part (a) for \(I_{Q}=2 \mathrm{~mA}\).

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