Version 4
SHEET 1 1632 680
WIRE 272 -80 -16 -80
WIRE 1024 -80 976 -80
WIRE 1168 -80 1104 -80
WIRE 432 -64 336 -64
WIRE 592 -64 432 -64
WIRE 272 -48 224 -48
WIRE -496 -32 -736 -32
WIRE -112 -32 -496 -32
WIRE -496 32 -496 -32
WIRE -112 32 -112 -32
WIRE 224 64 224 -48
WIRE 432 64 432 16
WIRE 432 64 224 64
WIRE 432 112 432 64
WIRE 592 128 592 16
WIRE 976 128 976 -80
WIRE 976 128 592 128
WIRE 1024 128 976 128
WIRE -736 144 -736 -32
WIRE 1168 144 1168 -80
WIRE 1168 144 1088 144
WIRE 1232 144 1168 144
WIRE 784 160 592 160
WIRE 1024 160 784 160
WIRE -496 192 -496 112
WIRE -416 192 -496 192
WIRE -336 192 -416 192
WIRE -112 192 -112 96
WIRE -112 192 -256 192
WIRE -16 192 -16 -80
WIRE -16 192 -112 192
WIRE -416 256 -416 192
WIRE 80 256 -416 256
WIRE -496 272 -496 192
WIRE -112 272 -112 192
WIRE 432 272 432 192
WIRE 432 272 224 272
WIRE 432 320 432 272
WIRE 592 320 592 160
WIRE 784 320 784 160
WIRE 224 384 224 272
WIRE 304 384 224 384
WIRE 432 400 368 400
WIRE 592 400 432 400
WIRE -736 416 -736 224
WIRE -496 416 -496 352
WIRE -496 416 -736 416
WIRE -112 416 -112 336
WIRE -112 416 -496 416
WIRE 80 416 80 256
WIRE 304 416 80 416
WIRE -496 480 -496 416
FLAG -496 480 0
FLAG 784 400 0
FLAG 1232 144 out
IOPIN 1232 144 Out
SYMBOL res -512 16 R0
SYMATTR InstName R1
SYMATTR Value 1Meg
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res -512 256 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap -128 32 R0
SYMATTR InstName C1
SYMATTR Value 1.1p
SYMBOL cap -128 272 R0
SYMATTR InstName C2
SYMATTR Value 0.9p
SYMBOL res -352 208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 10Meg
SYMBOL voltage -736 128 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value2 AC 5
SYMATTR Value SINE(0 5 5k)
SYMATTR InstName V1
SYMBOL res 416 -80 R0
SYMATTR InstName R4
SYMATTR Value 15k
SYMBOL res 416 96 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res 416 304 R0
SYMATTR InstName R6
SYMATTR Value 15k
SYMBOL res 576 -80 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res 576 304 R0
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL res 1120 -96 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R9
SYMATTR Value 10k
SYMBOL res 768 304 R0
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL Opamps\\LT1097 336 336 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1097 1056 80 R0
SYMATTR InstName U2
SYMBOL Opamps\\LT1097 304 0 M180
SYMATTR InstName U3
TEXT -760 528 Left 0 !.tran 0 1m 0 10u