Version 4 SHEET 1 928 696 WIRE -112 -224 -336 -224 WIRE -80 -224 -112 -224 WIRE 96 -224 0 -224 WIRE -480 -176 -480 -288 WIRE 32 -176 32 -288 WIRE -336 -160 -336 -224 WIRE 96 -160 96 -224 WIRE 96 -160 64 -160 WIRE 128 -160 96 -160 WIRE 272 -160 208 -160 WIRE -112 -144 -112 -224 WIRE 0 -144 -112 -144 WIRE 176 -128 64 -128 WIRE 272 -96 272 -160 WIRE 32 -48 32 -112 WIRE 32 0 -112 0 WIRE -48 48 -48 -16 WIRE -112 64 -112 0 WIRE -80 64 -112 64 WIRE 32 80 32 0 WIRE 32 80 -16 80 WIRE 80 80 32 80 WIRE 176 80 176 -128 WIRE 176 80 160 80 WIRE 208 80 176 80 WIRE 768 80 288 80 WIRE -336 96 -336 -80 WIRE -80 96 -336 96 WIRE -336 160 -336 96 WIRE -48 160 -48 112 WIRE 608 208 304 208 WIRE 608 224 608 208 WIRE 304 272 304 208 WIRE -336 288 -336 240 WIRE -272 288 -336 288 WIRE 272 288 -192 288 WIRE 384 304 336 304 WIRE 592 304 384 304 WIRE 192 320 48 320 WIRE 272 320 192 320 WIRE 304 400 304 336 WIRE -336 416 -336 288 WIRE 592 416 592 304 WIRE 48 448 48 320 WIRE 192 496 192 320 WIRE 240 496 192 496 WIRE 384 496 384 304 WIRE 384 496 320 496 WIRE 400 496 384 496 WIRE -480 624 -480 -96 WIRE -336 624 -336 496 WIRE -64 624 -336 624 WIRE 48 624 48 528 WIRE 48 624 -64 624 WIRE 592 624 592 496 WIRE 592 624 48 624 WIRE 768 624 768 160 WIRE 768 624 592 624 WIRE -64 656 -64 624 FLAG 272 -96 0 FLAG -64 656 0 FLAG 32 -48 0 FLAG -48 160 0 FLAG 608 224 0 FLAG -480 624 0 FLAG -480 -288 VCC FLAG 32 -288 VCC FLAG -48 -16 VCC FLAG 304 400 VCC SYMBOL Opamps\\LTC2052 -48 80 R0 SYMATTR InstName U1 SYMBOL Opamps\\LTC2052 32 -144 M0 SYMATTR InstName U2 SYMBOL Opamps\\LTC2052 304 304 M180 SYMATTR InstName U4 SYMBOL res 224 -176 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 25k SYMBOL res 16 -240 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 25k SYMBOL res 176 64 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 25k SYMBOL res 304 64 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 25k SYMBOL res 336 480 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R9 SYMATTR Value 9k SYMBOL res 64 544 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R10 SYMATTR Value 1k SYMBOL res -320 -64 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R11 SYMATTR Value 2k5 SYMBOL res -320 512 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName PT100 SYMATTR Value 250 SYMBOL voltage -480 -192 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5v SYMBOL voltage 768 64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 2.5V SYMBOL res 576 400 R0 SYMATTR InstName R5 SYMATTR Value 100k SYMBOL res -352 144 R0 SYMATTR InstName RMUX1 SYMATTR Value 100 SYMBOL res -176 272 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName RMUX2 SYMATTR Value 100 TEXT -512 680 Left 0 !.tran 1 TEXT 512 -224 Left 0 ;Einfache 3-Leiterschaltung\n100R = 1V\n250R = 2,5V\n2.5V Uref wird benötigt\n100R = 0°C 250R = 409°C TEXT 760 40 Left 0 ;Uref=2,5V