EL ENG 105 Study Guide - Midterm Guide: Transconductance, Small-Signal Model, Isdn User Part
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To get credit for a problem or sub-problem, it is essential for you to show the steps you took to get to the answer. No credit will be given if you just show the answer without any further explanation. Calculate voltage v1, v2, v3, and v4, and specify the operation region of all the transistors. You must clearly show the procedure / proof of your answer. kn = 100ua/v2, kp = 50u a/v2 , vtn = 0. 5v, vtp = -0. 5v, n,p=0: (4 pt) M4 (w/l)4= 1u / 0. 25u (w/l)4= 1u / 0. 25u. Last week, while cleaning the office, we stumbled onto a board that contains a mystery amplifier, as shown in the picture below. From this plot, determine (approximately) what operation point (as expressed by the bias voltage vin) would achieve the highest linear output swing while still giving high gain. What is the low-frequency gain at this point? (2 points)
