6.012 Microelectronic Devices and Circuits Tutorial #11 Problem 1 – Common Source Amplifier Frequency Response 1. (E10.8) You are given an PMOS common‐source voltage amplifier with a current source supply with ISUP=50uA and roc=infinity. The PMOS device has a W/L=50um/2um. The source resistance, RS=10kOhm and the load resistance RL is infinity. Assume that all the devices are operating in their constant‐current region. a) Calculate the open‐circuit voltage gain at low frequency. b) Calculate ω3dB using the Miller Approximation and considering only Cgs and Cgd of the PMOS device. c) Repeat (b) using the OCTC method.MIT OpenCourseWare http://ocw.mit.edu 6.012 Microelectronic Devices and CircuitsSpring 2009 For information about citing these materials or our Terms of Use, visit:
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