set12new - ECE3050 Assignment 12 1 The gure shows a...

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ECE3050 Assignment 12 1. The f gure shows a di f erential ampli f er. Each MOSFET has the parameters g m =1 / 400S , r 0 =40k ,and χ =0 . 5 .I ti sg i v enth a t R D =10k and R Q =20k . The answers given assume the r 0 approximations. (a) Show that the resistance seen looking out of each source is R ts = 263 . 16 , the resistance seenlook ingin toeachd ra ini s r id =79 . 74k , and the output resistance seen looking into the two outputs with v i 1 = v i 2 =0 is r out 1 = r out 2 =8 . 886k . (b) For the di f erential inputs v i 1 = v id / 2 and v i 2 = v id / 2 , show that v o 1 /v id = v o 2 /v id = 11 . 11 . (c) For the common-mode inputs v i 1 = v icm and v i 2 = v icm , show that v o 1 /v icm = v o 2 /v icm = 0 . 147 . 2. For a MOSFET di f amp, show that the body e
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This note was uploaded on 05/25/2011 for the course ECE 3050 taught by Professor Hollis during the Summer '08 term at Georgia Tech.

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set12new - ECE3050 Assignment 12 1 The gure shows a...

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