EL ENG 105 Study Guide - Midterm Guide: Pmos Logic, Miller Effect, Threshold Voltage
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Guidelines: closed book and notes, two pages of information sheets allowed, total time = 90 minutes. 1 (1) for the circuit shown in fig. 1, w/l = 2 for both m1 and m2, oxc = 100 a/v2, = 0. 05 n: [5 pt] find the dc drain current at m2 when vout = 3v. Use = 0 for this part: [5 pt] find the dc gate bias (vg) of m2 such that the dc output voltage vout = 3v. = 0 for this part: [5 pt] draw the small-signal equivalent circuit. Find the values of all circuit elements in the small signal circuit (e. g. , gm, r0, ). v s: [5 pt] find the voltage gain, V v out: [5 pt] find the output resistance of the circuit (both expression and numeric value), [5 pt] find the input resistance, and construct the two-port model of this voltage amplifier.
