LM34CAZ Silicon Temperature Sensor


The LM34CAZ is ideal for cold-junction compensation(CJC) temperature measurements. Customers who are using thermocouples on an external CB37 terminal board can simply wire this sensor to a nearby analog input, and correlate the CJC offset within software.  Simply connect +Vs to LabJack VS, GND to LabJack GND, and Vout to a LabJack AIN terminal (FIO/EIO is best on the U3). It has a very convenient output of 10mV per °F, so 0.78V would correspond with 78°F.

  • Typical Accuracy ±0.4°F
  • Operating Range -40°F* to +230°F
  • Output Voltage 10mV/°F

The LM34CAZ is the most accurate version of the LM34 precision temperature sensor made by Texas Instruments; it is not manufactured by LabJack, so the LM34 datasheet is hosted by Texas Instruments.  Some soldering may be necessary to add length to the sensor wires.  For more details about this sensor and a detailed look at different kinds of temperature sensors, see our temperature sensor app note.

*When powered by a LabJack device VS/GND, the range will be limited to 0 to 230 °F

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