Datasheet

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SBOS146A − OCTOBER 1986 − REVISED AUGUST 2004
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14
2mA
+
−
XTR101
0.9852mA
1.0147mA
R
R
R
R
S
1.8k
Ω
300
Ω
4.7k
Ω
0.01
µ
F
LM129
6.9V
Voltage
Ref
R
Figure 14. Bridge Input, Voltage Excitation
2mA
XTR101
R
R
R
R
S
300
Ω
2.2k
Ω
R
J
+
−
Figure 15. Bridge Input, Current Excitiation
−
+
R
S
+
−
XTR101
2.5kΩ
1mA
RTD
100Ω
20
Ω
Zero
Adjust
15Ω
1mA
This circuit has downscale
burn−out indication.
Type J
Figure 16. Thermocouple Input with RTD Cold
Junction Compensation
− +
R
S
+
−
XTR101
2.5k
Ω
1mA
20Ω
51Ω
Zero
Adjust
1mA
This circuit has downscale
burn−out indication.
Type J
2k
Ω
Figure 17. Thermocouple Input with Diode Cold
Junction Compensation
R
S
+
−
XTR101
2.5kΩ
1mA
RTD
100
Ω
20
Ω
15
Ω
−+
1mA
This circuit has upscale
burn−out indication.
Zero
Adjust
Figure 18. Thermocouple Input with RTD Cold
Junction Compensation