SNVS746E – MARCH 2000 – REVISED MAY 2013
Typical Applications
*Select R3 = V
REF
/583μA. V
REF
may be any stable positive voltage
≥
2V
Trim R3 to calibrate
Figure 16. Ground Referred Fahrenheit Thermometer
Figure 17. Terminating Remote Sensor for Voltage Output
*Output impedance of the LM134 at the “R” pin is approximately
where R
2
is the equivalent external resistance connected from the V
−
pin to ground. This negative resistance can be
reduced by a factor of 5 or more by inserting an equivalent resistor R
3
= (R
2
/16) in series with the output.
Figure 18. Low Output Impedance Thermometer
10
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