Version 4
SHEET 1 1096 680
WIRE 576 32 -272 32
WIRE 640 80 48 80
WIRE 256 144 224 144
WIRE 368 144 336 144
WIRE 640 144 368 144
WIRE -80 176 -128 176
WIRE 16 176 -16 176
WIRE 576 208 576 32
WIRE 640 208 576 208
WIRE -272 256 -272 32
WIRE -256 256 -272 256
WIRE -128 256 -128 176
WIRE -128 256 -176 256
WIRE -80 256 -128 256
WIRE 48 256 48 80
WIRE 112 256 48 256
WIRE 224 256 224 144
WIRE 224 256 192 256
WIRE 256 256 224 256
WIRE 16 272 16 176
WIRE 16 272 -16 272
WIRE 48 272 48 256
WIRE 48 272 16 272
WIRE 224 272 224 256
WIRE 224 272 192 272
WIRE 368 272 368 144
WIRE 368 272 320 272
WIRE 400 272 368 272
WIRE -80 288 -112 288
WIRE 256 288 224 288
WIRE 400 304 400 272
WIRE 432 304 400 304
WIRE -112 320 -112 288
WIRE 224 320 224 288
WIRE 576 320 576 208
WIRE 576 320 528 320
WIRE 192 336 192 272
WIRE 192 336 48 336
WIRE 432 336 400 336
WIRE 48 368 48 336
WIRE 400 416 400 336
WIRE 48 464 48 448
FLAG 224 320 0
FLAG 640 144 vs
IOPIN 640 144 Out
FLAG 640 208 vm
IOPIN 640 208 Out
FLAG -112 320 0
FLAG 640 80 vi
IOPIN 640 80 Out
FLAG 400 496 0
FLAG 48 464 0
SYMBOL oa_limit 288 336 M180
WINDOW 0 -9 94 Left 2
SYMATTR InstName OA
SYMATTR SpiceLine gain=1e5
SYMATTR SpiceLine2 limit_p=9 limit_n=-9
SYMATTR Value oa_slimit
SYMBOL res 208 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs1
SYMATTR Value 5k
SYMBOL res 352 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs2
SYMATTR Value 5k
SYMBOL res -160 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL cap -16 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10nF ic=.1
SYMBOL oa_limit -48 208 R0
WINDOW 0 -9 94 Left 2
SYMATTR InstName OA1
SYMATTR SpiceLine gain=1e5
SYMBOL mult 464 256 R0
SYMATTR InstName U1
SYMBOL voltage 400 400 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vc
SYMATTR Value PULSE(0.5 2 500u 1m 1m 1m 5m 1)
SYMBOL current 48 448 R180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value PULSE(0 1m 1u 1p 1p 1u 100 1)
TEXT 712 320 Left 2 !.tran .05u 1.5m 0 .05u
TEXT 712 360 Left 2 !.lib oa_limit.sub\n.lib oa_slimit.sub\n.lib mult.sub