2. (30 points) Given the MOS Differential Pair circuit below operating from a single power supply of VDD = 5 V with Q1 a

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2 30 Points Given The Mos Differential Pair Circuit Below Operating From A Single Power Supply Of Vdd 5 V With Q1 A 1 (213.92 KiB) Viewed 32 times

2. (30 points) Given the MOS Differential Pair circuit below operating from a single power supply of VDD = 5 V with Q1 and Q2 are matched and Rp=10 k 2. In addition, all transistors are made with process parameters uyCox=250 A/V2, threshold voltage of 0.25V, and a channel length modulation parameter of 0.05, and it is desired that all transistors are operating with an overdrive voltage of 0.2V. (Note this is the same circuit as previous test questions but with different operating condition.) (a) (10 points) Find the value for R and the (W/L) ratios for all the transistors, assuming Q1 and Q2 are matched. (b) (10 points) Find the differential input range and the differential gain Ad in V/V (C) (5 points) Find the common mode input rage. (d) (5 points) Assume there is a 2% mismatch for the (W/L) ratios for Q1 and Q2, find the maximum possible CMRR in dB. VDD w RD ER R , VOD VGI VG2 心。 Q2 0.1 may R 1/ 0.4 mA GND