Version 4
SHEET 1 880 680
WIRE -256 128 -256 112
WIRE -256 224 -256 208
WIRE -256 240 -256 224
WIRE -256 416 -256 320
WIRE -224 224 -256 224
WIRE -224 240 -224 224
WIRE -144 112 -256 112
WIRE -144 144 -144 112
WIRE -144 416 -256 416
WIRE -144 416 -144 224
WIRE -48 288 -48 224
WIRE -48 384 -48 368
WIRE 16 384 16 272
WIRE 48 224 -48 224
WIRE 48 272 16 272
WIRE 96 208 96 160
WIRE 96 320 96 288
WIRE 128 160 96 160
WIRE 224 160 208 160
WIRE 224 208 224 160
WIRE 240 416 -144 416
WIRE 240 416 240 352
WIRE 256 0 256 -48
WIRE 256 176 256 80
WIRE 256 304 256 176
WIRE 272 208 224 208
WIRE 272 208 272 144
WIRE 272 320 96 320
WIRE 272 320 272 272
WIRE 288 112 -144 112
WIRE 288 144 272 144
WIRE 288 208 272 208
WIRE 288 272 272 272
WIRE 288 320 272 320
WIRE 288 352 240 352
WIRE 320 -48 256 -48
WIRE 320 0 320 -48
WIRE 320 96 320 64
WIRE 320 176 256 176
WIRE 320 176 320 160
WIRE 320 304 256 304
WIRE 320 400 320 368
WIRE 384 128 352 128
WIRE 384 208 368 208
WIRE 384 208 384 128
WIRE 384 272 368 272
WIRE 384 336 352 336
WIRE 384 336 384 272
WIRE 464 96 464 80
WIRE 464 208 464 176
WIRE 464 224 464 208
WIRE 464 272 464 256
WIRE 464 352 464 272
WIRE 480 224 464 224
WIRE 480 256 464 256
WIRE 480 352 464 352
WIRE 512 80 464 80
WIRE 512 96 512 80
WIRE 512 208 512 160
WIRE 512 304 320 304
WIRE 512 304 512 272
WIRE 544 64 320 64
WIRE 544 160 512 160
WIRE 544 160 544 64
WIRE 576 240 544 240
WIRE 576 352 560 352
WIRE 576 352 576 240
WIRE 592 240 576 240
WIRE 672 64 544 64
WIRE 672 80 672 64
WIRE 672 176 672 160
WIRE 688 240 672 240
WIRE 688 256 688 240
WIRE 688 336 688 320
WIRE 752 64 672 64
WIRE 752 400 320 400
WIRE 752 400 752 64
FLAG -48 384 0
FLAG 16 384 0
FLAG 688 336 0
FLAG 512 96 0
FLAG 320 0 0
FLAG 672 176 0
FLAG 688 240 aout
FLAG -224 240 0
SYMBOL sw 96 304 M180
WINDOW 3 39 57 Left 0
SYMATTR InstName S1
SYMATTR Value MYSW
SYMBOL voltage -144 128 R0
WINDOW 3 -69 -45 Left 0
WINDOW 123 -68 -71 Left 0
WINDOW 39 -70 -101 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 0.01 1000)
SYMATTR Value2 AC 0.01 0
SYMATTR SpiceLine Rser=0 Cpar=0
SYMBOL voltage -48 272 R0
WINDOW 3 -148 234 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 0 0 19uS 20uS)
SYMBOL Opamps\\LT1022A 320 192 M180
WINDOW 3 -15 146 Left 0
SYMATTR InstName U1
SYMBOL Opamps\\LT1022A 320 272 R0
WINDOW 0 -49 123 Left 0
WINDOW 3 -48 154 Left 0
SYMATTR InstName U2
SYMBOL Opamps\\LT1022A 512 304 M180
WINDOW 0 -35 112 Left 0
SYMATTR InstName U3
SYMBOL res 384 192 R90
WINDOW 0 50 105 VBottom 0
WINDOW 3 21 14 VTop 0
SYMATTR InstName R1
SYMATTR Value 3K
SYMBOL res 384 256 R90
WINDOW 0 11 105 VBottom 0
WINDOW 3 -16 13 VTop 0
SYMATTR InstName R2
SYMATTR Value 3K
SYMBOL res 480 192 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 6K
SYMBOL res 480 256 R90
WINDOW 0 106 55 VBottom 0
WINDOW 3 54 55 VTop 0
SYMATTR InstName R4
SYMATTR Value 6K
SYMBOL res 480 192 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 51 Left 0
SYMATTR InstName R5
SYMATTR Value 6K
SYMBOL res 464 368 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R6
SYMATTR Value 6K
SYMBOL res 576 256 R270
WINDOW 0 -56 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL cap 672 256 R0
WINDOW 0 40 12 Left 0
WINDOW 3 40 37 Left 0
SYMATTR InstName C1
SYMATTR Value 4.7n
SYMBOL voltage 672 176 R180
WINDOW 0 53 80 Left 0
WINDOW 3 40 53 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 15V
SYMBOL voltage 256 96 R180
WINDOW 0 24 104 Left 0
WINDOW 3 42 55 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 15V
SYMBOL res 224 144 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R8
SYMATTR Value 20
SYMBOL res -272 112 R0
WINDOW 3 35 66 Left 0
SYMATTR InstName R9
SYMATTR Value 10K
SYMBOL res -272 224 R0
WINDOW 0 39 62 Left 0
WINDOW 3 38 92 Left 0
SYMATTR InstName R10
SYMATTR Value 10K
TEXT -224 -32 Left 0 !.tran 0 30mS 0 0.1uS
TEXT -200 536 Left 0 !.model MYSW SW(Ron = 1 Roff = 10Meg Vt = 2.5 Vh = 1)