PMOS as a nonlinear resistor The PMOS transistor in the circuit of Fig

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PMOS as a nonlinear resistor The PMOS transistor in the circuit of Fig P4.36 (as shown below) has Vt = −0.7 V, kp, = 0.06 mA/V2, L = 0.8 μm and λ = 0. Find the value required for W and R in order to establish a drain current of 115 μA and a voltage VD of 3.5 V.

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PMOS as a nonlinear resistor The PMOS transistor in the circuit of Fig P4.36 (as shown below) has $V t = - 0.7 V, k p$ , $= 0.06 m A / V^{2}, L = 0.8 μ m$ and $λ = 0$ . Find the value required for $W$ and $R$ in order to establish a drain current of $115 μ A$ and a voltage $V_{D}$ of $3.5 V$ .