Version 4
SHEET 1 880 680
WIRE 288 16 160 16
WIRE 48 80 0 80
WIRE 160 80 160 16
WIRE 160 80 112 80
WIRE 288 80 240 80
WIRE -64 128 -288 128
WIRE -32 128 -64 128
WIRE 0 128 0 80
WIRE 0 128 -32 128
WIRE -32 144 -32 128
WIRE 224 144 208 144
WIRE 208 160 208 144
WIRE -224 176 -256 176
WIRE 0 176 0 128
WIRE 32 176 0 176
WIRE 160 176 160 80
WIRE 160 176 112 176
WIRE 176 176 160 176
WIRE 288 192 288 80
WIRE 288 192 240 192
WIRE 304 192 288 192
WIRE -224 208 -224 176
WIRE -160 208 -224 208
WIRE -144 208 -160 208
WIRE -32 208 -64 208
WIRE 16 208 -32 208
WIRE 128 208 16 208
WIRE 176 208 128 208
WIRE 128 224 128 208
WIRE 16 240 16 208
WIRE -288 256 -288 128
WIRE -256 256 -288 256
WIRE -224 256 -256 256
WIRE 224 256 224 144
WIRE 240 256 224 256
WIRE -160 272 -160 208
WIRE -128 272 -160 272
WIRE -32 272 -32 208
WIRE -32 272 -64 272
WIRE 240 272 240 256
WIRE 128 304 16 304
WIRE 176 304 128 304
WIRE 128 320 128 304
WIRE 16 336 16 304
WIRE 16 336 -224 336
WIRE 176 352 176 304
WIRE 240 352 176 352
WIRE 240 368 240 352
WIRE 208 448 208 224
WIRE 240 448 208 448
FLAG 128 320 0
FLAG -64 64 0
SYMBOL Opamps\\LT1057 208 128 R0
WINDOW 3 36 96 Left 0
SYMATTR InstName U1
SYMBOL res 112 208 R0
SYMATTR InstName R1
SYMATTR Value 90k
SYMBOL res 128 160 R90
WINDOW 0 8 6 VBottom 0
WINDOW 3 -38 49 VTop 0
SYMATTR InstName R2
SYMATTR Value 9meg
SYMBOL res 256 64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 90k
SYMBOL res -48 192 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 9meg
SYMBOL voltage -256 160 R0
WINDOW 3 -376 54 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value PULSE(10 11 0 10n 10n 10u 20u)
SYMATTR InstName V1
SYMBOL voltage -224 240 R0
WINDOW 3 -240 131 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -240 88 Left 0
SYMATTR Value SINE(00 100 1000)
SYMATTR SpiceLine Rser=100
SYMATTR InstName V2
SYMBOL voltage 240 256 R0
WINDOW 3 46 67 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 12
SYMATTR InstName V3
SYMBOL voltage 240 352 R0
WINDOW 3 47 68 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 12
SYMATTR InstName V4
SYMBOL cap -48 144 R0
WINDOW 0 -24 11 Left 0
WINDOW 3 -31 43 Left 0
SYMATTR InstName C1
SYMATTR Value 130p
SYMBOL cap -64 256 R90
WINDOW 0 116 44 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 16p
SYMBOL cap 112 64 R90
WINDOW 0 59 65 VBottom 0
WINDOW 3 -39 30 VTop 0
SYMATTR InstName C3
SYMATTR Value 146p
SYMBOL cap 272 16 R0
SYMATTR InstName C4
SYMATTR Value 1600p
SYMBOL cap 0 240 R0
WINDOW 3 45 40 Left 0
SYMATTR InstName C5
SYMATTR Value 1600p
SYMBOL cap -80 64 R0
WINDOW 3 -60 27 Left 0
SYMATTR InstName C7
SYMATTR Value 30p
TEXT -288 480 Left 0 !.tran 0 3m 1m 200n