MT test_W05_05 (2) - ELECTRONICS-II(ELEC 312 class of...

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ELECTRONICS-II (ELEC 312) class of Winter 2005 (Mid-term test, February 18, 2005) Electrical and Computer Engineering Department, Concordia University Instructo r: Dr. R. Raut Student name : ID# Q.1: Consider the basic MOS current mirror circuit shown below. It is to be designed for I REF =50 μA, with V dd =1.8 V. The nominal I o is 50 μA. Given W/L=10 for the MOS transistors, V TH =0.5 V and μC ox =250 μA/V 2 . (i) Design R. (ii) What will be the lowest possible value for V o ? The early voltage is 40 V. (iii) How much will I o change if V o changes by +1 V?
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Q.2: The high frequency response of an integrated circuit amplifier having a dc gain of
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