HW_15 - EE 438 Homework #15 Basic FET Amplifiers Note: In...

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EE 438 Homework #15 Basic FET Amplifiers Note: In the problems below assume λ = 0 in the DC analysis. Use the given values of λ to determine the values of r o in the signal analysis. Also assume that the substrate for the NMOS transistors is connected to ground and the substrates (n wells) for the PMOS transistors are connected to + V DD . 1. In the Common Drain circuit shown on the reverse side let A 100 REF µ = I and . The parameters for the NMOS transistors are: V 10 = DD V NMOS: 0.01 , V 0.5026 V, 0.6 2 , V 5 . 1 , 10 , A/V 20 1/2 f 0 2 = = = = = = λ γ φ tn n V L W k DC Analysis : Find (a) V GS2 and (b) I D1 . For the case where V O = 5V, find (c) V BIAS , (d) g m1 , and (e) g mb1 . Find (f) r o1 and (g) r o2 . Signal Analysis : Draw a small signal equivalent circuit and find: (h) the signal voltage gain, i o v v v A = . 2. In the Common Gate circuit shown on the reverse side let A 900 REF = I and V DD = 10 V. The transistor parameters are

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This note was uploaded on 10/26/2009 for the course EE 438 taught by Professor Cardwell during the Spring '08 term at University of Texas at Austin.

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HW_15 - EE 438 Homework #15 Basic FET Amplifiers Note: In...

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