The differential amplifier below should achieve a differential gain of 20 and R=47KOhm. 4/O0Z="n 40=40=4Z0=44) A) Find all (W/L) (10 pts) B) Find the common mode input range, VcM (10 pts) 6V 6V Figure 3
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In this case, Ad = 20 and RD = RL = 47 kOhm. We know that gm = 2 * ID / Vov, where ID is the bias current and Vov is the overdrive voltage. Since the differential pair is biased with a current source, we can assume that ID is constant. Let's call it I. Now, Show more…
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