Calculation tool
Data sheet
LMT87
- LMT87LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
- Very Accurate: ±0.4°C Typical
- Low 2.7-V Operation
- Average Sensor Gain of -13.6 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 LMT87 device 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 2.7-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 LMT87LPG 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 LMT87 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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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LMT87 2.7-V, SC70/TO-92/TO-92S, Analog Temperature Sensors With Class-AB Output datasheet (Rev. E) | PDF | HTML | 20 Oct 2017 |
| Application note | SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) | 08 May 2019 | ||
| Technical article | How to use temperature sensors to achieve linear thermal foldback in automotive LE | PDF | HTML | 01 Mar 2017 | |
| More literature | Analog Temperature Sensors | 18 Apr 2013 | ||
| EVM User's guide | Using the LMT84-7 Evaluation Board | 06 Feb 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-SC70 (DCK) | 5 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
| TO-92 (LPG) | 3 | Ultra Librarian |
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