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Unformatted text preview: I = 20 µ A and V DD = V SS = 5 V. Neglecting the channel length modulation effect perform a DC Analysis of the circuit to find (a) V GS 3 , and (b) V GS 1 . Also find the small signal parameters (c) g m1 = g m2 , (d) g m3 =g m4 , and (e) r o1 = r o2 = r o3 = r o4 4. Use a small signal equivalent of the circuit in Problem 3 with the values of g m and r o determined in that problem to find the differential voltage gain, 2 1 i i o v v v A − = v . Use the approximate method discussed in class to simplify the analysis of the equivalent circuit. Fig. 1. BJT Differential Amplifier R C R C R E R E v i1 I v i2 V CC Q 1 Q 2 v C1 v C2 v E1 v E2 v X V EE _ + _ + Fig. 2. CMOS Differential Amplifier with Current Mirror Load Q 1 Q 2 Q 3 Q 4 V DD I v X v i1 v i2 V SS _ + _ + v o...
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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.
- Spring '08