Version 4
SHEET 1 880 680
WIRE 336 -240 -112 -240
WIRE 240 -208 -240 -208
WIRE 240 -160 240 -208
WIRE 368 -112 288 -112
WIRE 480 -112 448 -112
WIRE 336 -48 336 -240
WIRE 240 -32 240 -80
WIRE 288 -32 288 -112
WIRE 288 -32 240 -32
WIRE 304 -32 288 -32
WIRE 480 -16 480 -112
WIRE 480 -16 368 -16
WIRE 512 -16 512 -48
WIRE 512 -16 480 -16
WIRE -16 0 -16 -64
WIRE 48 0 -16 0
WIRE 144 0 128 0
WIRE 304 0 144 0
WIRE -240 16 -240 -208
WIRE -112 16 -112 -240
WIRE -16 16 -16 0
WIRE 144 80 144 0
WIRE 240 80 240 -32
WIRE -240 176 -240 96
WIRE -112 176 -112 96
WIRE -112 176 -240 176
WIRE -16 176 -16 96
WIRE -16 176 -112 176
WIRE 64 176 -16 176
WIRE 144 176 144 160
WIRE 144 176 64 176
WIRE 240 176 240 160
WIRE 240 176 144 176
WIRE -112 192 -112 176
WIRE 64 224 64 176
WIRE -112 320 -112 272
WIRE 336 320 336 16
WIRE 336 320 -112 320
FLAG 512 -48 Out
FLAG -16 -64 In
FLAG 64 224 0
SYMBOL Opamps\\LT1002 336 -80 R0
WINDOW 3 18 103 Left 2
SYMATTR InstName U1
SYMBOL voltage -112 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage -112 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage -16 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 0
SYMBOL Misc\\EuropeanResistor 224 64 R0
SYMATTR InstName R1
SYMATTR Value 20k
SYMBOL Misc\\EuropeanResistor 224 -176 R0
WINDOW 3 -42 77 Left 2
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL Misc\\EuropeanResistor 128 64 R0
SYMATTR InstName R3
SYMATTR Value 20k
SYMBOL Misc\\EuropeanResistor 464 -128 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 20k
SYMBOL Misc\\EuropeanResistor 144 -16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL voltage -240 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 5
TEXT -192 376 Left 2 !.dc V3 0 5 0.01