Version 4
SHEET 1 1136 680
WIRE 192 -368 192 -384
WIRE 192 -352 192 -368
WIRE 192 -240 192 -272
WIRE 208 -96 208 -112
WIRE 208 0 208 -16
WIRE 320 -176 304 -176
WIRE 368 -176 320 -176
WIRE 368 -176 368 -224
WIRE 368 -96 368 -176
WIRE 400 -224 368 -224
WIRE 400 -96 368 -96
WIRE 448 -304 448 -352
WIRE 448 -176 448 -208
WIRE 448 -32 448 -80
WIRE 704 -176 448 -176
WIRE 752 -176 704 -176
WIRE 752 -64 752 -112
FLAG 208 0 0
FLAG 704 -176 Vout
FLAG 208 -112 Vin
FLAG 448 -128 0
FLAG 192 -240 0
FLAG 192 -368 VDD
FLAG 448 -256 VDD
FLAG 448 -32 0
FLAG 448 -352 VDD
FLAG 320 -176 Vin
FLAG 752 -64 0
SYMBOL nmos4 400 -176 R0
WINDOW 0 104 24 Right 0
WINDOW 3 179 41 Right 0
WINDOW 123 213 74 Right 0
SYMATTR InstName M1
SYMATTR Value N_50n
SYMATTR Value2 l=50n w=500n
SYMBOL voltage 208 -112 R0
WINDOW 0 -72 21 Left 0
WINDOW 3 -106 154 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vin
SYMATTR Value PULSE(0 1 500p 1p 1p 1000p)
SYMBOL voltage 192 -368 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDD
SYMATTR Value 1
SYMBOL pmos4 400 -304 R0
WINDOW 0 88 9 Right 0
WINDOW 3 168 20 Right 0
WINDOW 123 206 76 Right 0
SYMATTR InstName M2
SYMATTR Value P_50n
SYMATTR Value2 l=50n w=1u
SYMBOL cap 736 -176 R0
SYMATTR InstName Cload
SYMATTR Value {cload}
TEXT 496 40 Left 0 !.tran 0 2n 0 1p
TEXT 496 64 Left 0 !.lib cmosedu_models.txt
TEXT 496 -360 Left 0 ;Plot Vin Vout
TEXT 368 -312 Left 0 ;20/1
TEXT 360 -72 Left 0 ;10/1
TEXT 496 16 Left 0 !.step param cload list 25f 50f 75f 100f