Version 4
SHEET 1 880 744
WIRE 320 -128 -96 -128
WIRE 672 -128 384 -128
WIRE 64 -64 64 -80
WIRE 112 -64 64 -64
WIRE -320 -32 -320 -64
WIRE -208 -32 -208 -64
WIRE 112 -32 112 -64
WIRE -96 -16 -96 -128
WIRE 64 -16 64 -64
WIRE 112 48 64 48
WIRE -320 96 -320 48
WIRE -208 96 -208 48
WIRE -96 96 -96 64
WIRE 64 96 64 48
WIRE 64 96 -96 96
WIRE 560 160 560 128
WIRE 144 176 144 144
WIRE 480 176 480 32
WIRE 528 176 480 176
WIRE 64 192 64 96
WIRE 112 192 64 192
WIRE 672 192 672 -128
WIRE 672 192 592 192
WIRE 720 192 672 192
WIRE 224 208 176 208
WIRE 256 208 224 208
WIRE 352 208 320 208
WIRE 480 208 432 208
WIRE 528 208 480 208
WIRE -304 224 -352 224
WIRE -192 224 -304 224
WIRE -96 224 -128 224
WIRE 64 224 -16 224
WIRE 112 224 64 224
WIRE -304 272 -304 224
WIRE 144 272 144 240
WIRE 560 272 560 224
WIRE 64 416 64 224
WIRE 96 416 64 416
WIRE 224 416 224 208
WIRE 224 416 176 416
WIRE 480 416 480 208
WIRE 512 416 480 416
WIRE 672 416 672 192
WIRE 672 416 592 416
WIRE -304 432 -304 352
WIRE 64 512 64 416
WIRE 96 512 64 512
WIRE 224 512 224 416
WIRE 224 512 160 512
WIRE 480 512 480 416
WIRE 512 512 480 512
WIRE 672 512 672 416
WIRE 672 512 576 512
FLAG 64 -80 0
FLAG 480 32 0
FLAG 720 192 OUT
FLAG -304 432 0
FLAG -320 96 0
FLAG -208 96 0
FLAG -320 -64 +15V
FLAG -208 -64 -15V
FLAG 144 144 -15V
FLAG 560 128 -15V
FLAG 144 272 +15V
FLAG 560 272 +15V
FLAG -352 224 IN
SYMBOL cap -128 208 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap 160 496 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL cap 80 48 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL cap 256 224 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL cap 320 -112 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C5
SYMATTR Value 1µ
SYMBOL cap 512 528 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C6
SYMATTR Value 10n
SYMBOL res -112 240 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 80 432 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 496 432 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 336 224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res 96 -48 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res -112 -32 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL voltage -304 256 R0
WINDOW 3 -191 261 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(-2.5 +2.5 2.5E-5 100n 100n 2.5E-5 5E-5)
SYMBOL voltage -320 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -208 64 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 15
SYMBOL Opamps\\UniversalOpamp2 144 208 M180
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 560 192 M180
SYMATTR InstName U2
TEXT -498 474 Left 2 !.tran 10m