Version 4
SHEET 1 880 680
WIRE -288 -160 -288 -208
WIRE -208 -160 -288 -160
WIRE -416 -144 -416 -208
WIRE -288 -144 -288 -160
WIRE -208 -144 -208 -160
WIRE 96 -112 -16 -112
WIRE 208 -112 176 -112
WIRE 64 -64 64 -80
WIRE -288 -48 -288 -64
WIRE -208 -48 -208 -64
WIRE -208 -48 -288 -48
WIRE -416 -32 -416 -64
WIRE -144 -32 -416 -32
WIRE -16 -32 -16 -112
WIRE -16 -32 -64 -32
WIRE 64 -32 64 -64
WIRE -16 -16 -16 -32
WIRE 32 -16 -16 -16
WIRE 208 0 208 -112
WIRE 208 0 96 0
WIRE 256 0 208 0
WIRE 32 16 -16 16
WIRE -288 48 -288 -48
WIRE -144 48 -288 48
WIRE -16 48 -16 16
WIRE -16 48 -64 48
WIRE -416 96 -416 -32
WIRE -288 96 -288 48
WIRE -16 96 -16 48
WIRE 64 96 64 32
WIRE 256 96 208 96
WIRE 64 112 64 96
WIRE -416 192 -416 176
WIRE -288 192 -288 176
WIRE -16 192 -16 176
WIRE 208 192 208 96
FLAG -288 192 0
FLAG -416 192 0
FLAG -16 192 0
FLAG 208 192 0
FLAG 64 -64 UB+
FLAG 64 96 UB-
FLAG -288 -208 UB+
FLAG -416 -208 UB+
SYMBOL Misc\\EuropeanResistor -432 -160 R0
SYMATTR InstName R1
SYMBOL Misc\\EuropeanResistor -304 -160 R0
SYMATTR InstName R2
SYMBOL Misc\\EuropeanResistor -432 80 R0
SYMATTR InstName R3
SYMBOL Misc\\EuropeanResistor -304 80 R0
SYMATTR InstName R4
SYMBOL Misc\\EuropeanResistor -48 -48 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R5
SYMBOL Misc\\EuropeanResistor -48 32 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R6
SYMBOL Misc\\EuropeanResistor 192 -128 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R7
SYMBOL Misc\\EuropeanResistor 0 192 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R8
SYMBOL Opamps\\opamp2 64 -64 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanResistor -224 -160 R0
SYMATTR InstName P1
TEXT 216 48 Left 2 ;-Ua...+Ua
LINE Normal -192 -128 -224 -96
LINE Normal -304 128 -320 112
LINE Normal -304 144 -320 128
LINE Normal -432 128 -448 112
LINE Normal -432 144 -448 128