Version 4
SHEET 1 1864 996
WIRE 64 -32 64 -80
WIRE 240 -32 240 -80
WIRE 704 32 624 32
WIRE 832 32 768 32
WIRE 64 80 64 48
WIRE 240 80 240 48
WIRE 832 112 832 32
WIRE 368 144 64 144
WIRE 512 144 368 144
WIRE 624 144 624 32
WIRE 624 144 592 144
WIRE 656 144 624 144
WIRE 832 160 832 112
WIRE 832 160 720 160
WIRE 880 160 832 160
WIRE 656 176 624 176
WIRE 64 224 64 144
WIRE 624 256 624 176
WIRE 64 384 64 304
WIRE 704 416 624 416
WIRE 832 416 768 416
WIRE 832 496 832 416
WIRE 624 528 624 416
WIRE 624 528 592 528
WIRE 656 528 624 528
WIRE 832 544 832 496
WIRE 832 544 720 544
WIRE 880 544 832 544
WIRE 656 560 624 560
WIRE 624 656 624 560
WIRE 688 736 608 736
WIRE 816 736 752 736
WIRE 816 816 816 736
WIRE 608 848 608 736
WIRE 608 848 576 848
WIRE 640 848 608 848
WIRE 816 864 816 816
WIRE 816 864 704 864
WIRE 864 864 816 864
WIRE 640 880 608 880
WIRE 608 976 608 880
FLAG 64 384 0
FLAG 240 80 0
FLAG 64 80 0
FLAG 64 -80 +UB
FLAG 688 128 +UB
FLAG 240 -80 -UB
FLAG 688 192 -UB
FLAG 624 256 0
FLAG 368 144 S0
FLAG 832 112 S1
FLAG 688 512 +UB
FLAG 688 576 -UB
FLAG 624 656 0
FLAG 832 496 S2
FLAG 512 528 S1
FLAG 672 832 +UB
FLAG 672 896 -UB
FLAG 608 976 0
FLAG 816 816 S3
FLAG 496 848 S2
SYMBOL voltage 64 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 0.25m 0 0.2501m 1 0.5m 1 0.5001m -1 1m -1 1.001m 1 1.5m 1 1.5001m -1 2m -1 2.001m 1 2.5m 1 2.5001m -1 3m -1 3.001m 1 3.5m 1 3.5001m 0 0.5001 -1)
SYMBOL res 608 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL cap 768 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 160n
SYMBOL voltage 64 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 10
SYMBOL voltage 240 64 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 10
SYMBOL Opamps\\UniversalOpamp2 688 160 R0
SYMATTR InstName U1
SYMBOL res 608 512 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL cap 768 400 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 160n
SYMBOL Opamps\\UniversalOpamp2 688 544 R0
SYMATTR InstName U2
SYMBOL res 592 832 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap 752 720 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 160n
SYMBOL Opamps\\UniversalOpamp2 672 864 R0
SYMATTR InstName U3
TEXT 54 688 Left 2 !.tran 0 5m 0