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LM34 - Precision Fahrenheit Temperature Sensor

View LM34CAH: -Precision Fahrenheit Temperature Sensor

LM34CAH: -Precision Fahrenheit Temperature Sensor

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Texas Instruments
Jameco Part no. 1993606
Manufacturer no. LM34CAH
  RoHS compliant
   NCNR (Non-Cancelable, Non Returnable)
web exclusive
Pricing & Availability


# of Unit Price
1+ $21.25
10+ $19.55
100+ $18.35
  • Availability:Ship  3 Days ARO 

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LM34 - Precision Fahrenheit Temperature Sensor

The LM34 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Fahrenheit temperature. The LM34 has an advantage over linear temperature sensors calibrated in degrees Kelvin, as the user is not required to subtract a large constant voltage from its output to obtain convenient Fahrenheit scaling. The LM34 does not require any external calibration or trimming to provide typical accuracies of ±½°F at room temperature and ±1½°F over a full -50 to +300°F temperature range.

The LM34's low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with single power supplies or with positive and negative supplies. As it draws only 75 µA from its supply, it has very low self-heating, less than 0.2°F in still air. The LM34C is rated for a -40°F to +230°F range (0°F with improved accuracy) and is available packaged in hermetic TO-46 transistor packages.


  • Calibrated directly in degrees Fahrenheit
  • Linear +10.0 mV/°F scale factor
  • 1.0°F accuracy guaranteed (at +77°F)
  • Rated for full -50° to +300°F range
  • Suitable for remote applications
  • Low cost due to wafer-level trimming
  • Operates from 5 to 30 volts
  • Less than 90 µA current drain
  • Low self-heating, 0.18°F in still air
  • Nonlinearity only ± 0.5°F typical
  • Low-impedance output, 0.4Ω for 1 mA load

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  • Specification Value
    Maximum Operating Supply Voltage35V
    Minimum Operating Temperature-40°C
    Maximum Operating Temperature110°C
    MountingThrough Hole
    Product Width5.44mm
    Product Height2.67mm(Max)
    Specification Value
    FunctionTemp Sensor
    Product Length5.44mm
    Product TypeTemperature Sensor
    Sensor Gain10mV/F
    Output TypeAnalog
    Minimum Operating Supply Voltage5V
    Typical Operating Supply Voltage9V|12V|15V|18V|24V

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