A particular implementation of the CMOS amplifier of Figs. 13.1 and 13.2 provides Gm1 =
Chapter 13, Problem 13.5(choose chapter or problem)
A particular implementation of the CMOS amplifier of Figs. 13.1 and 13.2 provides Gm1 = 1 mA/V, Gm2 = 2 mA/V, ro2 = ro4 = 100 k, ro6 = ro7 = 40 k, and C2 = 1 pF. (a) Find the value of CC that results in ft = 100 MHz. What is the 3-dB frequency of the open-loop gain? (b) Find the value of the resistance R that when placed in series with CC causes the transmission zero to be located at infinite frequency. (c) Find the frequency of the second pole and hence find the excess phase lag at f = ft, introduced by the second pole, and the resulting phase margin assuming that the situation in (b) pertains. A
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