EE
EE 435 HW 1 Sol Spring 2014

EE 435 HW 1 Sol Spring 2014 - EE435 HW 1 Solution Problem 3...

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1 EE435 HW 1 Solution Problem 3 V IN V OUT C L V4 g m2 g m1 V IN 3 3 o m g g 1 o g 4 4 m g V 4 o g 2 o g Figure 1: Small Signal Model for Problem 1 a) KCL at node drain of M1 and M2 3 3 4 1 1 4 4 4 2 2 04 (g g )V 0 (1) (g g sC ) 0 (2) m o m in o m m in out o L g V g V g V g V V b) From 1 => 1 4 in 3 1 03 m m o g V V g g g   and plug into (2) 1 4 2 02 04 3 1 3 (g g sC ) 0 m m in m in out L m o o g g V g V V g g g 1 4 2 02 04 3 1 3 1 ( g V ) g g sC m m out in m in L m o o g g V V g g g c) Since 1 1 ; V 2 2 in in in in in in in V V V V V V   1 4 2 3 2 1 3 1 4 2 02 04 3 1 3 02 04 3 1 3 ( ) 1 1 [ g ] g g sC 2( ) 2 2(g g sC )( ) m m m m m o o m m out in m in in L m o o L m o o g g g g g g g g g V V V V g g g g g g 1 4 2 3 2 1 3 02 04 3 1 3 ( ) 2(g g sC )( ) out m m m m m o o in L m o o V g g g g
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  • Fall '09
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