Version 4
SHEET 1 2228 940
WIRE 624 -512 496 -512
WIRE 864 -512 704 -512
WIRE 1120 -512 944 -512
WIRE 496 -448 496 -512
WIRE 656 -448 656 -464
WIRE 864 -432 832 -432
WIRE 1040 -432 928 -432
WIRE 0 -336 -80 -336
WIRE 176 -336 64 -336
WIRE -80 -256 -80 -336
WIRE 16 -256 -80 -256
WIRE 176 -256 176 -336
WIRE 176 -256 96 -256
WIRE 656 -240 656 -384
WIRE 16 -144 16 -160
WIRE 32 -144 16 -144
WIRE 656 -128 656 -160
WIRE 704 -128 704 -192
WIRE 704 -128 656 -128
WIRE 16 -80 16 -144
WIRE -176 -64 -272 -64
WIRE -80 -64 -80 -256
WIRE -80 -64 -96 -64
WIRE -16 -64 -80 -64
WIRE 656 -64 656 -128
WIRE 176 -48 176 -256
WIRE 176 -48 48 -48
WIRE 496 -48 496 -368
WIRE 496 -48 176 -48
WIRE -16 -32 -64 -32
WIRE 896 -32 896 -64
WIRE 912 -32 896 -32
WIRE 992 -32 976 -32
WIRE 896 32 896 -32
WIRE 16 48 16 -16
WIRE 32 48 16 48
WIRE 112 48 96 48
WIRE 832 48 832 -432
WIRE 832 48 800 48
WIRE 864 48 832 48
WIRE 1040 64 1040 -432
WIRE 1040 64 928 64
WIRE 1120 64 1120 -512
WIRE 1120 64 1040 64
WIRE 1312 64 1120 64
WIRE 656 80 656 16
WIRE 656 80 544 80
WIRE 864 80 656 80
WIRE -64 96 -64 -32
WIRE 656 96 656 80
WIRE 16 160 16 48
WIRE 544 192 544 80
WIRE 656 192 656 176
WIRE 704 192 704 144
WIRE 704 192 656 192
WIRE 656 208 656 192
WIRE 896 208 896 96
WIRE 912 208 896 208
WIRE 992 208 976 208
WIRE 896 240 896 208
WIRE 544 320 544 256
WIRE 656 320 656 288
WIRE 496 384 496 -48
WIRE 688 384 496 384
WIRE 800 384 800 48
WIRE 800 384 768 384
WIRE 896 384 800 384
WIRE 1120 384 1120 64
WIRE 1120 384 976 384
WIRE 800 432 800 384
WIRE 800 560 800 512
WIRE 1824 816 1824 752
WIRE 2064 816 2064 752
FLAG 896 240 VEE
FLAG 896 -64 VCC
FLAG 656 320 0
FLAG -64 96 0
FLAG 16 -160 VCC
FLAG 16 160 VEE
FLAG 800 560 0
FLAG 1568 816 VCC
FLAG 1696 816 VEE
FLAG 1568 896 0
FLAG 1696 896 0
FLAG 1824 896 0
FLAG 1824 752 V_PASSIVE
FLAG 2064 896 0
FLAG 2064 752 V_ACTIVE
FLAG -272 -64 V_PASSIVE
FLAG 96 -144 0
FLAG 112 48 0
FLAG 992 208 0
FLAG 992 -32 0
FLAG 544 320 0
SYMBOL cap 640 -448 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL res 992 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 784 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 112 -272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R
SYMATTR Value 1k
SYMBOL res -80 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res 784 416 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res 512 -352 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R7
SYMATTR Value 560
SYMBOL res 848 -496 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 560
SYMBOL cap 928 -448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 33p
SYMBOL THAT\\potentiometer 720 -528 R90
WINDOW 0 79 94 Left 2
WINDOW 3 -46 -33 VRight 2
SYMATTR InstName U3
SYMATTR Value Rtot=10K wiper=1
SYMBOL voltage 1568 800 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage 1696 800 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage 1824 800 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMATTR Value SINE(0 0.5 1k)
SYMBOL voltage 2064 800 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V4
SYMATTR Value SINE(0 2 1k)
SYMBOL cap 96 -160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL cap 96 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 100n
SYMBOL cap 976 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL cap 976 -48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 100n
SYMBOL cap 64 -352 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 33p
SYMBOL Opamps\\opamp2 16 -112 R0
SYMATTR InstName U6
SYMATTR Value OPA2134
SYMBOL Opamps\\opamp2 896 0 R0
WINDOW 3 18 135 Left 2
SYMATTR Value OPA2134
SYMATTR InstName U1
SYMBOL THAT\\potentiometer 640 -256 R0
WINDOW 0 79 94 Left 2
WINDOW 3 117 -171 VRight 2
SYMATTR InstName U2
SYMATTR Value Rtot=10K wiper=1
SYMBOL THAT\\potentiometer 640 80 R0
WINDOW 0 79 94 Left 2
WINDOW 3 139 43 VRight 2
SYMATTR InstName U4
SYMATTR Value Rtot=10K wiper=1
SYMBOL cap 528 192 R0
WINDOW 0 -40 30 Left 2
SYMATTR InstName C9
SYMATTR Value 100n
SYMBOL res 672 304 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 4k7
SYMBOL res 672 32 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 4k7
TEXT 1488 696 Left 2 !.ac oct 100 10 100e3
TEXT 1456 656 Left 2 !.include potentiometer.sub
TEXT 1488 592 Left 2 !.lib OPA2134.LIB