Version 4 SHEET 1 1224 688 WIRE 320 96 320 80 WIRE 320 192 320 176 WIRE 400 192 320 192 WIRE 448 80 320 80 WIRE 448 112 448 80 WIRE 448 304 448 208 WIRE 672 80 448 80 WIRE 672 160 448 160 WIRE 672 160 672 80 WIRE 672 192 672 160 WIRE 672 304 448 304 WIRE 672 304 672 272 WIRE 848 80 672 80 WIRE 848 112 848 80 FLAG 848 112 0 SYMBOL voltage 320 80 R0 WINDOW 0 -93 54 Left 0 WINDOW 3 -93 82 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName VSG SYMATTR Value 1.15 SYMBOL voltage 672 176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 0 38 54 Left 0 WINDOW 3 24 104 Invisible 0 SYMATTR InstName VSD SYMATTR Value 0 SYMBOL pmos4 400 112 R0 WINDOW 123 56 100 Left 0 SYMATTR Value2 l=2u w=30u SYMATTR InstName M1 SYMATTR Value P_1u TEXT 384 336 Left 0 !.dc VSD 0 5 1m TEXT 384 360 Left 0 !.lib cmosedu_models.txt TEXT 368 48 Left 0 ;Plot Id(M1) and 1/d(Id(M1)) (to get ro)