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Question 8. [10 marks] Design a CMOS amplifier using the configuration shown to give an input resistance of 1 MΩ and a voltage gain of at least vOUT/vIN = −5 V/V to a load resistance of 10 kΩ. Let VDD = 5 V, k′W/L = 0.5 mA/V2, |Vt| = 1, and VA = 50 V for all transistors, and assume that C → ∞. Give −VSS and R to provide the required gain. R : 5 kΩ −VSS: VSS = −3 V Figure 4: Common source amplifier.

Question 8. [10 marks] Design a CMOS amplifier using the configuration shown to give an input resistance of 1 MΩ and a voltage gain of at least vOUT/vIN = −5 V/V to a load resistance of 10 kΩ. Let VDD = 5 V, k′W/L = 0.5 mA/V2, |Vt| = 1, and VA = 50 V for all transistors, and assume that C → ∞. Give −VSS and R to provide the required gain. R : 5 kΩ −VSS: VSS = −3 V Figure 4: Common source amplifier.

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Question 8. [10 marks] Design a CMOS amplifier using the configuration shown to give an input resistance of 1 M Ω and a voltage gain of at least v O U T / v I N = − 5 V / V to a load resistance of 10 k Ω . Let V D D = 5 V , k ′ W L = 0.5 m A / V 2 , | V l | = 1 , and V A = 50 V for all transistors, and assume that C → ∞ . Give − V S S and R to provide the required gain. R : 5 k Ω − V S S : V S S = − 3 V Figure 4: Common source amplifier.

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