Thermocouple amplifier

thermo_amp.asc

Version 4
SHEET 1 880 680
WIRE -448 -80 -560 -80
WIRE -416 -80 -448 -80
WIRE -320 -80 -336 -80
WIRE 96 -80 -320 -80
WIRE -560 -48 -560 -80
WIRE -320 -32 -320 -80
WIRE -576 48 -576 32
WIRE -560 80 -560 32
WIRE -448 80 -448 -80
WIRE -320 80 -320 32
WIRE -320 80 -448 80
WIRE -224 80 -320 80
WIRE 96 112 96 -80
WIRE 96 112 -80 112
WIRE 160 112 96 112
WIRE 304 112 240 112
WIRE -864 144 -944 144
WIRE -688 144 -784 144
WIRE -560 144 -688 144
WIRE -416 144 -560 144
WIRE -304 144 -416 144
WIRE -224 144 -304 144
WIRE -688 160 -688 144
WIRE -560 160 -560 144
WIRE -416 176 -416 144
WIRE -304 176 -304 144
WIRE -1056 224 -1056 176
WIRE -944 224 -944 144
WIRE -688 256 -688 224
WIRE -560 256 -560 224
WIRE -560 256 -688 256
WIRE -416 256 -416 240
WIRE -416 256 -560 256
WIRE -304 256 -304 240
WIRE -304 256 -416 256
WIRE -192 256 -192 192
WIRE -192 256 -304 256
WIRE -192 288 -192 256
WIRE -1056 352 -1056 304
WIRE -944 352 -944 304
WIRE -944 352 -1056 352
WIRE -944 384 -944 352
FLAG -192 32 V+
FLAG -144 192 V+
FLAG -192 288 0
FLAG -560 80 0
FLAG -944 384 0
FLAG -1056 176 V+
FLAG 304 112 out
FLAG -944 144 in
SYMBOL OpAmps\\LTC2063 -192 112 R0
SYMATTR InstName U1
SYMBOL res -768 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL cap -432 176 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res -320 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 200k
SYMBOL res -576 -64 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL diode -704 160 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode -576 224 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res 256 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL voltage -944 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0.005 0.02 50)
SYMBOL voltage -1056 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 3.3V
SYMBOL cap -320 176 R0
SYMATTR InstName C3
SYMATTR Value 33µ
SYMBOL cap -336 -32 R0
SYMATTR InstName C2
SYMATTR Value 10n
TEXT -1088 408 Left 2 !.tran 0.3