Version 4
SHEET 1 1032 680
WIRE 496 160 464 160
WIRE 512 160 496 160
WIRE 560 160 512 160
WIRE 272 176 192 176
WIRE 368 176 352 176
WIRE 496 192 496 160
WIRE 496 192 464 192
WIRE 560 224 560 160
WIRE -208 256 -240 256
WIRE -64 256 -208 256
WIRE 80 256 32 256
WIRE 192 256 192 176
WIRE 192 256 160 256
WIRE 256 256 192 256
WIRE 32 272 32 256
WIRE 496 272 496 192
WIRE 496 272 320 272
WIRE -240 288 -240 256
WIRE -64 288 -64 256
WIRE -16 288 -64 288
WIRE 256 288 224 288
WIRE 560 320 560 304
WIRE 224 336 224 288
WIRE -240 416 -240 368
FLAG -240 416 0
FLAG 560 320 0
FLAG -208 256 x
FLAG 512 160 out
FLAG 224 336 0
FLAG 32 352 0
FLAG -16 336 0
SYMBOL mult 432 112 M0
SYMATTR InstName M1
SYMBOL voltage -240 272 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vx
SYMATTR Value SINE(-1 .99 1k)
SYMBOL res 544 208 R0
SYMATTR InstName Rout
SYMATTR Value 1
SYMBOL oa_limit 288 336 M180
SYMATTR InstName U1
SYMATTR SpiceLine gain=1e5
SYMATTR SpiceLine2 limit_p=0.5 limit_n=-2
SYMBOL res 368 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 176 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL e 32 256 R0
SYMATTR InstName E1
SYMATTR Value {pol}
TEXT 744 320 Left 2 !.lib mult.sub
TEXT 744 192 Left 2 !.dc vx -3 3 .01\n*.tran 1u 2m 0 1u\n.param pol=1\n.step param pol list -1 1
TEXT 744 352 Left 2 !.lib oa_limit.sub