Version 4
SHEET 1 880 680
WIRE 16 -64 -224 -64
WIRE 112 -64 16 -64
WIRE 192 -64 112 -64
WIRE 16 0 16 -64
WIRE 112 0 112 -64
WIRE 144 80 112 80
WIRE 224 80 144 80
WIRE -224 128 -224 -64
WIRE 192 128 192 -64
WIRE 144 144 144 80
WIRE 160 144 144 144
WIRE 304 160 304 80
WIRE 304 160 224 160
WIRE 464 160 304 160
WIRE 16 176 16 80
WIRE 16 176 -64 176
WIRE 128 176 16 176
WIRE 160 176 128 176
WIRE -64 192 -64 176
WIRE 464 208 464 160
WIRE 128 224 128 176
WIRE 224 224 128 224
WIRE 304 224 304 160
WIRE 128 240 128 224
WIRE -224 352 -224 208
WIRE -64 352 -64 272
WIRE -64 352 -224 352
WIRE 64 352 -64 352
WIRE 128 352 128 320
WIRE 128 352 64 352
WIRE 192 352 192 192
WIRE 192 352 128 352
WIRE 464 352 464 288
WIRE 464 352 192 352
WIRE 64 416 64 352
FLAG 64 416 0
SYMBOL res 96 -16 R0
SYMATTR InstName R1
SYMATTR Value 39k
SYMBOL res 0 -16 R0
SYMATTR InstName R2
SYMATTR Value 3.9k
SYMBOL res -80 176 R0
SYMATTR InstName R3
SYMATTR Value {Pt100}
SYMBOL res 112 224 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res 320 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 27k
SYMBOL res 320 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 107k
SYMBOL voltage -224 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=10
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL res 448 192 R0
SYMATTR InstName R7
SYMATTR Value 1000000
SYMBOL Opamps\\LT1056 192 96 R0
SYMATTR InstName U2
TEXT -216 -136 Left 2 !.PARAM Pt100 {100*(1+3.85e-3*temp)}
TEXT -216 -96 Left 2 !.step temp LIST 0 20 100