Datasheet

+ +
+
- -
3.3V
0.1 Fm
+5V
ZeroAdj.
K-Type
Thermocouple
40.7 V/ Cm °
R
7
549W
R
8
150kW
R
5
31.6kW
R
1
6.04kW
R
6
200W
+5V
0.1 Fm
R
2
2.94kW
V
O
R
3
60.4W
R
4
6.04kW
OPA378
D1
REF3333
0.1 Fm
10 Fm
OPA378
3V
1MW 60kW
100kW
1MW
NTC
Thermistor
V
1
-In
V
2
+In
R
1
R
2
2
3
5
6
1
R
2
OPA378
OPA378
INA152
V
O
V =(1+2R /R
O 2 1 2 1
)(V V )-
OPA378
OPA2378
www.ti.com SBOS417D –JANUARY 2008–REVISED OCTOBER 2009
Figure 34. Temperature Measurement
Figure 35. Thermistor Measurement
Figure 36. Precision Instrumentation Amplifier
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Product Folder Link(s): OPA378 OPA2378