Version 4
SHEET 1 1272 680
WIRE 256 -144 176 -144
WIRE -48 -112 -208 -112
WIRE -208 -96 -208 -112
WIRE 512 -96 176 -96
WIRE -48 -80 -48 -112
WIRE -16 -80 -48 -80
WIRE 96 -80 96 -144
WIRE 96 -80 64 -80
WIRE 144 -80 96 -80
WIRE 256 -64 256 -144
WIRE 256 -64 208 -64
WIRE 352 -64 256 -64
WIRE -16 -48 -48 -48
WIRE 96 -48 64 -48
WIRE 144 -48 96 -48
WIRE 480 -32 176 -32
WIRE -48 -16 -48 -48
WIRE -48 -16 -208 -16
WIRE 512 -16 512 -96
WIRE 576 -16 512 -16
WIRE 672 -16 576 -16
WIRE 880 -16 672 -16
WIRE 1200 -16 880 -16
WIRE 960 0 816 0
WIRE 1200 0 1200 -16
WIRE 96 16 96 -48
WIRE 432 16 176 16
WIRE 576 16 576 -16
WIRE 880 16 880 -16
WIRE -208 32 -208 -16
WIRE 816 32 816 0
WIRE 848 32 816 32
WIRE 960 48 960 0
WIRE 960 48 912 48
WIRE 992 48 960 48
WIRE 1008 48 992 48
WIRE 848 64 816 64
WIRE 816 112 816 64
WIRE 1200 112 1200 80
WIRE 1200 112 816 112
WIRE 480 128 480 -32
WIRE 576 128 576 96
WIRE 576 128 480 128
WIRE 752 128 576 128
WIRE 864 128 752 128
WIRE 880 128 880 80
WIRE 880 128 864 128
WIRE 272 144 208 144
WIRE 1200 144 1200 112
WIRE 576 160 576 128
WIRE -32 176 -208 176
WIRE -208 192 -208 176
WIRE 512 192 512 -16
WIRE 512 192 208 192
WIRE -32 208 -32 176
WIRE 16 208 -32 208
WIRE 128 208 128 144
WIRE 128 208 96 208
WIRE 176 208 128 208
WIRE 272 224 272 144
WIRE 272 224 240 224
WIRE 368 224 272 224
WIRE 864 224 864 128
WIRE 1200 224 864 224
WIRE 16 240 -32 240
WIRE 128 240 96 240
WIRE 176 240 128 240
WIRE 480 256 480 128
WIRE 480 256 208 256
WIRE -32 272 -32 240
WIRE -32 272 -208 272
WIRE 128 304 128 240
WIRE 304 304 208 304
WIRE 432 304 432 16
WIRE 992 304 992 48
WIRE 992 304 432 304
WIRE -208 320 -208 272
WIRE 672 384 672 -16
WIRE 304 480 304 304
WIRE 672 480 672 464
WIRE 672 480 304 480
WIRE 672 496 672 480
WIRE 752 576 752 128
WIRE 752 576 672 576
FLAG 576 160 0
FLAG -208 32 0
FLAG -208 320 0
SYMBOL Opamps\\UniversalOpamp2 208 224 R0
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 176 -64 R0
SYMATTR InstName U2
SYMBOL Opamps\\UniversalOpamp2 880 48 R0
SYMATTR InstName U3
SYMBOL res 80 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 80 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R0
SYMATTR Value 1k
SYMBOL res 112 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 112 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res 224 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 20k
SYMBOL res 192 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 20k
SYMBOL res 224 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 20k
SYMBOL res 192 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 20k
SYMBOL voltage 576 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL voltage -208 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 0.05 1000)
SYMBOL voltage -208 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 0.05 1000 0 0)
SYMBOL res 1184 -16 R0
SYMATTR InstName R9
SYMATTR Value 1k
SYMBOL res 1184 128 R0
SYMATTR InstName R10
SYMATTR Value 1k
SYMBOL res 656 368 R0
SYMATTR InstName R2
SYMATTR Value 220
SYMBOL res 656 480 R0
SYMATTR InstName R11
SYMATTR Value 220
TEXT -240 360 Left 2 !.tran 0.005