LMT87 2.7V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92 | TI.com

LMT87 (ACTIVE) 2.7V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92


Recommended alternative parts

  • TMP235  -  This device has SIMILAR FUNCTIONALITY but with a better accuracy

Thermistor Alternative

The LMT84-87 family are precision analog output temperature sensors that can operate at a supply voltage as low as 1.5V and operates between -50°C and 150°C. They are an effective and easy to use replacement for NTC thermistors (Figure 1) delivering more accurate and more linear measurements while consuming less power (Figure 2).

Using the LMT8x/90 to replace NTC 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.


  • 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

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Part number Order Local sensor accuracy (Max) (+/- C) Operating temperature range (C) Supply voltage (Min) (V) Supply voltage (Max) (V) Supply current (Max) (uA) Sensor gain (mV/Deg C) Rating Features Output impedance (ohms) Interface
LMT87 Order now 2.7     -50 to 150     2.7     5.5     8.1     -13.6     Catalog     Industry standard pinout       Analog Output    
LM20 Order now 1.5     -40 to 125
-55 to 130    
2.4     5.5     7     -11.7     Catalog     Industry standard pinout
UL Recognized    
160     Analog Output    
TMP235 Order now 1     -40 to 150     2.3     5.5     12     10     Catalog     Industry standard pinout     20     Analog Output    
TMP61 Order now 2     -65 to 150     0     5.5     400     6400 ppm/°C     Catalog       10000     Resistance