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ho2.quiz - EE114 Autumn 08/09 R Dutton B Murmann Handout#2...

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EE114 Autumn 08/09 Handout #2 R. Dutton, B. Murmann Page 1 of 4 Last modified 9/17/2008 6:16:00 PM Entry Quiz If you are unsure if EE114 is the right class for you, please try to work the problems below. If you cannot solve these, you should most certainly take our course before engaging in more advanced graduate-level coursework. 1. CS-CD Cascade In the amplifier circuit below, ignore finite output resistance, extrinsic device capacitances and back-gate effect. Both transistors operate in the saturation region. Parameters: g m =5mS, f T =5GHz, R=1k . V in V out R R R Calculate: a) The amplifier’s small signal gain v out /v in at low frequencies (ignore all capacitances). Be sure to include the appropriate sign. b) The amplifier’s 3-dB bandwidth using the zero-value time constant method. 2. Large Signal Analysis of Differential Pairs In the circuit below, ignore back-gate effect and finite output resistance; assume ideal MOS long-channel I-V characteristics. Sketch V out versus V in (0…3V) in the diagram provided below. Calculate and annotate pertinent saturation points. Parameters: I tail =1mA, R=500 , μ C ox W/L=50mA/V 2 .
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