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LMT84

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1.5V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

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Data sheet

LMT84

ACTIVE
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Product details

Local sensor accuracy (max) 2.7 Rating Catalog Operating temperature range (°C) -50 to 150 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -5.5 Features Industry standard pinout
Local sensor accuracy (max) 2.7 Rating Catalog Operating temperature range (°C) -50 to 150 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -5.5 Features Industry standard pinout
TO-92 (LP) 3 19.136 mm² (5.2 mm × 3.68 mm) TO-92 (LPG) 3 6.08 mm² (4 mm × 1.52 mm) SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm)
  • LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.5-V Operation
  • Average Sensor Gain of -5.5 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors
  • LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.5-V Operation
  • Average Sensor Gain of -5.5 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors

The LMT84 is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 1.5-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT84LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT84 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.

The LMT84 is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 1.5-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT84LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT84 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LMT84 1.5-V, SC70/TO-92/TO-92S, Analog Temperature Sensors datasheet (Rev. E) PDF | HTML Oct 20, 2017
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) May 8, 2019
Technical article Predictive maintenance solutions for HVAC filter replacement – part 1 PDF | HTML Nov 14, 2016
Technical article Should you choose an NTC thermistor, linear thermistor or analog temperature senso PDF | HTML Oct 12, 2015
More literature Analog Temperature Sensors Apr 18, 2013

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Evaluation board

LMT84-7EVM — EVM for LMT84, LMT85, LMT86 and LMT87 Temperature Sensor

The Texas Instruments LMT84-7EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT84, LMT85, LMT86, and LMT87 analog temperature sensors.

User guide: PDF
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SNIC006 — LMT84 Look-Up Table

Supported products & hardware

Many TI reference designs include the LMT84

Use our reference design selection tool to review and identify designs that best match your application and parameters.
Package Pins CAD symbols, footprints & 3D models
TO-92 (LP) 3 Ultra Librarian
TO-92 (LPG) 3 Ultra Librarian
SOT-SC70 (DCK) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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