Version 4
SHEET 1 1380 680
WIRE 32 0 -96 0
WIRE 80 0 32 0
WIRE 320 16 288 16
WIRE 432 16 400 16
WIRE 464 16 432 16
WIRE 576 16 544 16
WIRE 608 16 576 16
WIRE -96 32 -96 0
WIRE 32 32 32 0
WIRE 288 48 288 16
WIRE 432 112 432 16
WIRE 448 112 432 112
WIRE 576 128 576 16
WIRE 576 128 512 128
WIRE 608 128 576 128
WIRE 736 128 688 128
WIRE 768 128 736 128
WIRE -96 144 -96 112
WIRE 32 144 32 112
WIRE 128 144 32 144
WIRE 256 144 208 144
WIRE 272 144 256 144
WIRE 384 144 272 144
WIRE 448 144 384 144
WIRE 736 160 736 128
WIRE 32 176 32 144
WIRE 256 176 256 144
WIRE 736 256 736 224
WIRE 32 288 32 256
WIRE 256 288 256 256
WIRE 352 288 256 288
WIRE 256 320 256 288
WIRE 256 432 256 400
FLAG 32 288 0
FLAG 256 432 0
FLAG -96 144 0
FLAG 384 144 Up
FLAG 288 48 0
FLAG 736 256 0
FLAG 768 128 out
FLAG 80 0 Um
IOPIN 80 0 In
FLAG 352 288 Ur
IOPIN 352 288 In
DATAFLAG 272 144 ""
DATAFLAG 608 16 ""
SYMBOL Misc\\EuropeanResistor 16 16 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 16 160 R0
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL Misc\\EuropeanResistor 112 160 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 3k
SYMBOL Misc\\EuropeanResistor 240 160 R0
SYMATTR InstName R4
SYMATTR Value 4k
SYMBOL voltage -96 16 R0
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL voltage 256 304 R0
SYMATTR InstName V2
SYMATTR Value 2
SYMBOL Opamps\\opamp 480 64 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanResistor 448 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 304 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 592 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL cap 720 160 R0
SYMATTR InstName C1
SYMATTR Value 100n
TEXT -112 448 Left 2 !.op
TEXT -112 408 Left 2 !.lib opamp.sub
TEXT -184 -176 Left 2 ;Up = Um*R2*R4/(R1*(R2+R3+R4) + R2*(R3+R4)) + Ur*(R3*(R1+R2) + R1*R2)/((R3+R4)*(R1+R2) + R1*R2)\n \n\nUout = Up*(1+R5/R6)/(1+jw*R7*C)