LM34CAZ/NOPB Part Information

Details for LM34CAZ/NOPB by Texas Instruments

Electronic & Electrical Components > Sensors & Transducers > Sensors

Part Description

The LM34 series devices are precision integratedcircuit temperature sensors, whose output voltage is linearly proportional to the Fahrenheit temperature. The LM34 device has an advantage over linear temperature sensors calibrated in degrees Kelvin, because the user is not required to subtract a large constant voltage from its output to obtain convenient Fahrenheit scaling. The LM34 device does not require any external calibration or trimming to provide typical accuracies of ±1/2°F at room temperature and ±1-1⁄2°F over a full −50°F to 300°F temperature range. Lower cost is assured by trimming and calibration at the wafer level. The low output impedance, linear output, and precise inherent calibration of the LM34 device makes interfacing to readout or control circuitry especially easy. It can be used with single power supplies or with plus and minus supplies. Because the LM34 device draws only 75 µA from its supply, the device has very low selfheating, less than 0.2°F in still air. The LM34 device is rated to operate over a −50°F to 300°F temperature range, while the LM34C is rated for a −40°F to 230°F range (0°F with improved accuracy). The LM34 devices are series is available packaged in hermetic TO-46 transistor packages; while the LM34C, LM34CA, and LM34D are available in the plastic TO-92 transistor package. The LM34D device is available in an 8-lead, surface-mount, smalloutline package. The LM34 device is a complement to the LM35 device (Centigrade) temperature sensor.

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Part Features

  • 1.0u00b0F Accuracy Assured (at 77u00b0F)
  • Calibrated Directly in Degrees Fahrenheit
  • Less Than 90-u03bcA Current Drain
  • Linear 10.0 mV/u00b0F Scale Factor
  • Low Cost Due to Wafer-Level Trimming
  • Low Self-Heating, 0.18u00b0F in Still Air
  • Low-Impedance Output, 0.4 u03a9 for 1-mA Load
  • Nonlinearity Only u00b10.5u00b0F Typical
  • Operates From 5 to 30 Volts
  • Rated for Full u221250u00b0 to 300u00b0F Range
  • Suitable for Remote Applications

Part Specifications

IC Output Type Voltage
Sensing Accuracy Range ± 0.4°F
Sensing Temperature Min -40°F
Sensing Temperature Max 230°F
Sensor Case Style TO-92
No. of Pins 3Pins
Supply Voltage Min 5V
RoHS Compliant

Alternative Part Descriptions

  • TEMPERATURE SENSOR, 0.4F, TO-92-3; IC OU; MSL:MSL 1 - Unlimited; SVHC:No SVHC (15-Jan-2019) RoHS Compliant: Yes | Newark Electronics
  • Temp Sensor Analog Serial (2-Wire) 3-Pin TO-92 | Avnet America
  • ±1°F 5V-30V, Analog output temperature sensor with Fahrenheit scale calibration | Texas Instruments

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