# hw4 - UNIVERSITY OF CALIFORNIA College of Engineering...

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1 UNIVERSITY OF CALIFORNIA College of Engineering Department of Electrical Engineering and Computer Sciences Problem Set 4 EECS 240 B. E. BOSER Due Tuesday, March 16, 2004 SPRING 2004 1. Find the minimum width and length for two 1k poly resistors with 0.2% matching with a yield of 89%. Poly sheet resistance: 100 /square, standard deviation of the width: σ W =20nm. 2. Find an expression for the transconductance of M 1 as a function of R and m. Assume that the mirror has an exact 1:1 ratio, and neglect the body effect. Add a startup circuit. M4 M3 M2 1 M1 m R VDD

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2 3. Calculate the minimum value of I SS to meet specifications for dB f 3 , 2 oT v , * 1 V and * 2 V . Definitions: dB f 3 is the frequency at which the gain in o v v drops by 3dB from it's
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hw4 - UNIVERSITY OF CALIFORNIA College of Engineering...

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