Version 4
SHEET 1 1272 848
WIRE -128 -48 -176 -48
WIRE 432 -48 -128 -48
WIRE 544 -48 432 -48
WIRE 704 -48 544 -48
WIRE 432 -16 432 -48
WIRE -176 16 -176 -48
WIRE 224 96 80 96
WIRE 432 96 432 64
WIRE 432 96 224 96
WIRE 480 96 432 96
WIRE 432 128 432 96
WIRE 704 128 704 -48
WIRE 224 144 192 144
WIRE 384 144 224 144
WIRE 480 176 480 96
WIRE 480 176 432 176
WIRE 192 192 192 144
WIRE -176 208 -176 96
WIRE -144 208 -176 208
WIRE -64 208 -144 208
WIRE 48 208 16 208
WIRE 144 208 48 208
WIRE 80 256 80 96
WIRE 144 256 80 256
WIRE 192 368 192 272
WIRE 432 368 432 224
WIRE 432 368 192 368
WIRE 704 368 704 208
WIRE 704 368 432 368
WIRE 432 384 432 368
FLAG 432 384 0
FLAG 544 -48 VDD
DATAFLAG -144 208 ""
DATAFLAG -128 -48 ""
DATAFLAG 48 208 ""
DATAFLAG 224 96 ""
DATAFLAG 224 144 ""
DATAFLAG 528 336 "-Id(M1)"
SYMBOL e 192 176 R0
SYMATTR InstName E1
SYMATTR Value 100
SYMBOL pmos4 384 224 M180
WINDOW 123 104 34 Left 2
SYMATTR InstName M1
SYMATTR Value PM
SYMATTR Value2 l=11u w=11u
SYMBOL Misc\\EuropeanResistor 416 -32 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL voltage -176 0 R0
SYMATTR InstName Vz
SYMATTR Value 1
SYMBOL voltage 32 208 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Vos
SYMATTR Value ""
SYMBOL voltage 704 112 R0
SYMATTR InstName VDD
SYMATTR Value 5
TEXT -168 456 Left 2 !.model PM PMOS(Kp=2m Vto=-1)
TEXT -168 576 Left 2 !.op
TEXT 232 456 Left 2 ;Kp'=1mA/V  Uth=1V
TEXT -168 664 Left 2 ;Iout=(Uz-Vos+Vdd/A-Uth/A)*A/((A+1)*R1) -sqrt(Iout/(Kp'*W/L))/((A+1)*R1)
TEXT 368 112 Left 2 ;Vgs
TEXT 312 256 Left 2 ;Vout
TEXT 480 256 Left 2 ;Iout
TEXT -168 624 Left 2 ;Id = Kp'*W/L*(Vgs-Uth)^2
TEXT -168 496 Left 2 ;SPICE MOS-Level 1:   Ids = Kp/2*W/L*(Vgs-Vth)^2*(1+LAMBDA*Vds)
TEXT -168 720 Left 2 ;//Scilab\nKp1=1e-3; R1=1000; Vos=0; Uth=1; Vdd=5; A=100; Uz=1; W=11e-6; L=11e-6;\ndeff('[y]=f(Iout)','y=Iout-((Uz-Vos+Vdd/A-Uth/A)*A/((A+1)*R1)-sqrt(Iout/(Kp1*W/L))/((A+1)*R1) )')\nfsolve(1e-3,f)*1000  // Iout mA\n ans  =  1.0197049
TEXT -80 48 Left 2 ;Uz
TEXT 800 152 Left 2 ;Vdd
TEXT 72 280 Left 2 ;Vout/A
TEXT 224 296 Left 2 ;A
TEXT -48 304 Left 2 ;Vos
LINE Normal 352 144 352 96 2
LINE Normal 368 128 352 144 2
LINE Normal 352 144 368 128 2
LINE Normal 336 128 352 144 2
LINE Normal 304 352 304 160 2
LINE Normal 320 336 304 352 2
LINE Normal 304 352 320 336 2
LINE Normal 288 336 304 352 2
LINE Normal 464 304 464 256 2
LINE Normal 480 288 464 304 2
LINE Normal 464 304 480 288 2
LINE Normal 448 288 464 304 2
LINE Normal -96 176 -96 -32 2
LINE Normal -80 160 -96 176 2
LINE Normal -96 176 -80 160 2
LINE Normal -112 160 -96 176 2
LINE Normal 784 272 784 48 2
LINE Normal 800 256 784 272 2
LINE Normal 784 272 800 256 2
LINE Normal 768 256 784 272 2
LINE Normal 112 256 112 208 2
LINE Normal 128 240 112 256 2
LINE Normal 112 256 128 240 2
LINE Normal 96 240 112 256 2
LINE Normal -48 272 0 272 2
LINE Normal -32 288 -48 272 2
LINE Normal -48 272 -32 288 2
LINE Normal -32 256 -48 272 2