Analyze the following common gate amplifier that uses a NMOS transisto

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Analyze the following common gate amplifier that uses a NMOS transistor: a) Draw the small-signal T-model of the circuit (Ignore channel length modulation effect). b) Find the expressions for Rin, Av = vO/vi and Gv = vO/vsig

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Analyze the following common gate amplifier that uses a NMOS transistor: a) Draw the small-signal T-model of the circuit (Ignore channel length modulation effect). b) Find the expressions for $R_{in}, A_{v} = v_{O} / v_{i}$ and $G_{v} = v_{O} / v_{s i g}$