Version 4
SHEET 1 2132 680
WIRE 736 -32 704 -32
WIRE 848 -32 816 -32
WIRE 400 -16 368 -16
WIRE 496 -16 480 -16
WIRE 1056 0 992 0
WIRE 1184 0 1120 0
WIRE 1312 0 1184 0
WIRE 1488 0 1440 0
WIRE 1600 0 1552 0
WIRE 1744 0 1600 0
WIRE 608 16 608 -16
WIRE 272 32 272 16
WIRE 1680 48 1680 -32
WIRE 1248 64 1248 -32
WIRE 1600 64 1600 0
WIRE 1648 64 1600 64
WIRE 1184 80 1184 0
WIRE 1216 80 1184 80
WIRE 1744 80 1744 0
WIRE 1744 80 1712 80
WIRE 1776 80 1744 80
WIRE 704 96 704 -32
WIRE 736 96 704 96
WIRE 1312 96 1312 0
WIRE 1312 96 1280 96
WIRE 1344 96 1312 96
WIRE 1440 96 1440 0
WIRE 1440 96 1424 96
WIRE 1472 96 1440 96
WIRE 1568 96 1552 96
WIRE 1648 96 1568 96
WIRE 368 112 368 -16
WIRE 400 112 368 112
WIRE 848 112 848 -32
WIRE 848 112 800 112
WIRE 880 112 848 112
WIRE 992 112 992 0
WIRE 992 112 960 112
WIRE 1024 112 992 112
WIRE 1136 112 1104 112
WIRE 1216 112 1136 112
WIRE -112 128 -112 96
WIRE 496 128 496 -16
WIRE 496 128 464 128
WIRE 512 128 496 128
WIRE 608 128 608 96
WIRE 608 128 576 128
WIRE 736 128 608 128
WIRE 1680 128 1680 112
WIRE 128 144 112 144
WIRE 224 144 192 144
WIRE 272 144 272 112
WIRE 272 144 224 144
WIRE 400 144 272 144
WIRE 1248 144 1248 128
WIRE 768 160 768 144
WIRE 1136 160 1136 112
WIRE 1568 160 1568 96
WIRE 272 176 272 144
WIRE 368 176 368 112
WIRE 608 176 608 128
WIRE 704 176 704 96
WIRE 112 192 112 144
WIRE 432 192 432 160
WIRE -112 240 -112 208
WIRE 1136 256 1136 224
WIRE 1568 256 1568 224
WIRE 112 336 112 272
WIRE 272 336 272 256
WIRE 368 336 368 320
WIRE 608 336 608 256
WIRE 704 336 704 320
FLAG 1776 80 Out
IOPIN 1776 80 Out
FLAG -112 240 0
FLAG -112 96 +15V
FLAG 224 144 in
FLAG 432 192 0
FLAG 368 336 0
FLAG 272 336 0
FLAG 112 336 0
FLAG 432 96 +15V
FLAG 272 16 +15V
FLAG 608 336 0
FLAG 704 336 0
FLAG 768 160 0
FLAG 768 80 +15V
FLAG 1248 144 0
FLAG 1248 -32 +15V
FLAG 608 -16 +15V
FLAG 1136 256 0
FLAG 1568 256 0
FLAG 1680 128 0
FLAG 1680 -32 +15V
SYMBOL voltage 112 176 R0
WINDOW 123 -101 107 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 -34 6 Left 2
WINDOW 3 24 96 Invisible 2
SYMATTR Value2 AC 2mV 0
SYMATTR InstName V1
SYMATTR Value SINE(0 2m 2000)
SYMBOL cap 192 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 330n
SYMBOL res 256 16 R0
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 256 160 R0
WINDOW 0 -41 45 Left 2
WINDOW 3 -54 77 Left 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL Opamps\\LT1001 432 64 R0
WINDOW 3 4 109 Left 2
SYMATTR InstName U1
SYMBOL res 976 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 114.3
SYMBOL res 1120 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 5232.72
SYMBOL res 1440 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 314.78
SYMBOL res 1568 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 1900
SYMBOL cap 1120 -16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 70nF
SYMBOL cap 1152 224 R180
WINDOW 0 40 34 Left 2
WINDOW 3 33 8 Left 2
SYMATTR InstName C4
SYMATTR Value 5nF
SYMBOL Opamps\\LT1001 1680 16 R0
SYMATTR InstName U4
SYMBOL cap 1552 160 R0
WINDOW 3 -25 58 Left 2
WINDOW 0 -34 29 Left 2
SYMATTR Value 5nF
SYMATTR InstName C5
SYMBOL Opamps\\LT1001 1248 32 R0
WINDOW 3 -38 156 Left 2
SYMATTR InstName U3
SYMBOL cap 1552 -16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 70nF
SYMBOL voltage -112 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 44 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL res 496 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 384 272 R180
WINDOW 0 39 70 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 4k7
SYMBOL cap 352 256 R0
SYMATTR InstName C6
SYMATTR Value 10µ
SYMBOL cap 576 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 330n
SYMBOL Opamps\\LT1001 768 48 R0
SYMATTR InstName U2
SYMBOL res 592 0 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 592 160 R0
WINDOW 0 -42 50 Left 2
WINDOW 3 -57 80 Left 2
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL res 720 272 R180
WINDOW 0 34 67 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R11
SYMATTR Value 4k7
SYMBOL cap 688 256 R0
SYMATTR InstName C8
SYMATTR Value 10µ
SYMBOL res 832 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 100k
TEXT 80 408 Left 2 !.ac oct 100 100 20000