Datasheet

+
-
T
Metal A
Metal B
Thermocouple
Cold junction Reference
Cold junction Temperature
Copper
Copper
LMV841
LM35
Amplified
Thermocouple
Output
R
G
R
G
R
F
R
F
LMV841, LMV842, LMV844
www.ti.com SNOSAT1G –OCTOBER 2006–REVISED FEBRUARY 2013
The ADC in this example also coverts the signal from the LM35 to a digital signal. Now the microprocessor can
compensate the amplified thermocouple signal, for the unwanted thermocouple effect.
Figure 45. Thermocouple Amplifier
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