# Ch04s - Chapter 4 Problem Solutions 4.1(a C W g m = 2 K n I...

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Chapter 4 Problem Solutions 4.1 (a) ( ) ( ) 2 2 2 0.5 2 0.040 0.5 3.125 μ ω ⎞⎛ = = = = n ox m n D D C W g K I I L W L L (b) ( ) ( )( )( ) 2 2 2 0.5 0.04 3.125 0.8 2.80 V n ox D GS TN GS GS C W I V V L V V μ ⎞⎛ = = = 4.2 (a) ( ) ( ) 2 2 2 2 50 20 100 0.3125 2 p ox m p D D C W g K I I L W W L L μ = = ⎟⎜ = = (b) ( ) ( )( )( ) 2 2 2 100 20 0.3125 1.2 5.2 V p ox D SG TP SG SG C W I V V L V V μ = + ⎟⎜ = = 4.3 ( ) ( ) ( ) ( ) [ ] [ ] ( ) ( ) 2 1 1 2 2 1 1 10 1 3.4 1 3.0 1 5 3.4 1 5 3.0 1 10 3.4 3.0 3 10 3.4 5 0.0308 5 12.5 k 0.4 D n GS TN DS DS D D DS DS o D I K V V V V I I V V r I λ λ λ λ λ λ λ λ λ = + + + = = + + + = + = = Δ = = = Ω Δ 4.4 ( )( ) 0 0 1 1 1 0.833 mA 0.012 100 D D D r I I I r λ λ = = = = 4.5 ( ) ( ) ( ) ( ) ( ) ( ) ( ) 2 1 1 2 2 1 1 1 1 1 2 0.20 0.22 1 4 0.20 1 4 0.22 1 2 0.8 0.44 0.22 0.20 0.0556 D n GS TN DS DS D D DS I K V V V V I I V V λ λ λ λ λ λ λ λ λ = + + = + + = + + = + = =

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