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Problem 3: Calculate the dc characteristics of a MOSFET diff-amp shown in Figure. The transistor parameters are: Kn1 = Kn2 = 0.1 mA/V2, Kn3 = Kn4 = 0.3 mA/V2, and for all transistors, λ = 0, and VTN = 1 V. (a) Determine the maximum range of common-mode input voltage. (b) Determine the differential-mode voltage gain, common-mode voltage gain, and CMRR. Assume λ = 0.01 V−1 for M4.

Problem 3: Calculate the dc characteristics of a MOSFET diff-amp shown in Figure. The transistor parameters are: Kn1 = Kn2 = 0.1 mA/V2, Kn3 = Kn4 = 0.3 mA/V2, and for all transistors, λ = 0, and VTN = 1 V. (a) Determine the maximum range of common-mode input voltage. (b) Determine the differential-mode voltage gain, common-mode voltage gain, and CMRR. Assume λ = 0.01 V−1 for M4.

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Problem 3: Calculate the dc characteristics of a MOSFET diff-amp shown in Figure. The transistor parameters are: K n 1 = K n 2 = 0.1 m A / V 2 , K n 3 = K n 4 = 0.3 m A / V 2 , and for all transistors, λ = 0 , and V T N = 1 V . (a) Determine the maximum range of common-mode input voltage. (b) Determine the differential-mode voltage gain, common-mode voltage gain, and CMRR. Assume λ = 0.01 V − 1 for M 4 .

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