Version 4
SHEET 1 880 680
WIRE -656 -128 -656 -192
WIRE -656 112 -656 -48
WIRE -656 144 -656 112
WIRE -656 256 -656 224
WIRE -560 112 -656 112
WIRE -560 176 -560 112
WIRE -528 64 -528 -48
WIRE -448 -48 -528 -48
WIRE -432 64 -528 64
WIRE -432 144 -432 64
WIRE -432 240 -432 208
WIRE -352 -176 -352 -320
WIRE -352 -128 -352 -176
WIRE -352 -48 -368 -48
WIRE -352 -48 -352 -128
WIRE -352 64 -352 -16
WIRE -336 -128 -352 -128
WIRE -336 240 -432 240
WIRE -336 304 -336 240
WIRE -336 400 -336 384
WIRE -320 -176 -352 -176
WIRE -320 -48 -352 -48
WIRE -320 -16 -352 -16
WIRE -272 -320 -352 -320
WIRE -208 -176 -240 -176
WIRE -208 -128 -272 -128
WIRE -208 -128 -208 -176
WIRE -208 -32 -256 -32
WIRE -208 -32 -208 -128
WIRE -160 -32 -208 -32
WIRE -112 -320 -112 -448
WIRE -64 -48 -64 -160
WIRE -64 -32 -80 -32
WIRE -64 -32 -64 -48
WIRE -64 48 -64 -16
WIRE -48 -448 -112 -448
WIRE -48 -160 -64 -160
WIRE -32 -320 -112 -320
WIRE -32 -48 -64 -48
WIRE -32 -16 -64 -16
WIRE 64 -336 32 -336
WIRE 64 -240 64 -336
WIRE 64 -160 32 -160
WIRE 64 -64 64 -160
WIRE 64 -32 32 -32
WIRE 64 -32 64 -64
WIRE 96 -448 16 -448
WIRE 96 -304 32 -304
WIRE 96 -304 96 -448
WIRE 176 -64 128 -64
WIRE 256 -160 64 -160
WIRE 256 -160 256 -304
WIRE 272 -64 256 -64
WIRE 272 -64 272 -144
WIRE 272 32 272 -32
WIRE 304 -144 272 -144
WIRE 304 -64 272 -64
WIRE 304 -32 272 -32
WIRE 416 -144 384 -144
WIRE 416 -48 368 -48
WIRE 416 -48 416 -144
WIRE 496 -48 416 -48
WIRE 496 32 496 -48
WIRE 656 32 496 32
FLAG -560 176 0
FLAG -336 400 0
FLAG 656 32 Vout
IOPIN 656 32 Out
FLAG -656 -192 V1
FLAG -656 256 V2
FLAG 0 -288 V1
FLAG 0 -352 V2
FLAG -288 -64 V1
FLAG -288 0 V2
FLAG 0 -64 V1
FLAG 336 -80 V1
FLAG 0 0 V2
FLAG 336 -16 V2
FLAG -64 48 0
FLAG -352 64 0
FLAG 64 -240 0
FLAG 272 32 0
SYMBOL voltage -656 -144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -656 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -336 288 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC 1V 0
SYMATTR InstName V3
SYMATTR Value 0
SYMBOL Opamps\\LT1001 0 -256 R180
SYMATTR InstName U2
SYMBOL Opamps\\LT1001 -288 -96 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1001 0 -96 R0
SYMATTR InstName U3
SYMBOL Opamps\\LT1001 336 -112 R0
SYMATTR InstName U4
SYMBOL res 48 -176 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res -64 -48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res -224 -192 R90
WINDOW 0 -1 103 VBottom 0
WINDOW 3 -29 47 VTop 0
SYMATTR InstName R3
SYMATTR Value 1Meg
SYMBOL res -352 -64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL cap -448 144 R0
SYMATTR InstName C1
SYMATTR Value 0.1µF
SYMBOL cap -272 -144 R90
WINDOW 0 48 58 VBottom 0
WINDOW 3 21 1 VTop 0
SYMATTR InstName C2
SYMATTR Value 0.01
SYMBOL cap 16 -464 R90
WINDOW 0 48 58 VBottom 0
WINDOW 3 21 1 VTop 0
SYMATTR InstName C3
SYMATTR Value 0.01
SYMBOL res 192 -320 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 5.6K
SYMBOL res -96 -336 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 5.6K
SYMBOL res 272 -320 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R7
SYMATTR Value {Rc}
SYMBOL res -176 -336 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R8
SYMATTR Value {Rc}
SYMBOL cap 128 -80 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C4
SYMATTR Value .01µF
SYMBOL res 272 -80 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R9
SYMATTR Value 11K
SYMBOL res 400 -160 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 -31 -16 VTop 0
SYMATTR InstName R10
SYMATTR Value 120K
TEXT -64 298 Left 0 !.ac dec 1000 1e-3 1e6
TEXT -96 208 Left 0 !.PARAM Rc=12.5K