1.8V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 2.7 Operating temperature range (C) -50 to 150 Supply voltage (Min) (V) 1.8 Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 8.1 Interface type Analog output Sensor gain (mV/Deg C) -8.2 Rating Catalog Features Industry standard pinout open-in-new Find other Analog temperature sensors

Package | Pins | Size

SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 TO-92 (LP) 3 19 mm² 5.2 x 3.68 TO-92 (LPG) 3 6 mm² 4 x 1.52 open-in-new Find other Analog temperature sensors

Features

  • LMT85LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.8-V Operation
  • Average Sensor Gain of -8.2 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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Description

The LMT85 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 1.8-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 LMT85LPG 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 LMT85 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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Type Title Date
* Data sheet LMT85 1.8-V, SC70/TO-92/TO-92S, Analog Temperature Sensors datasheet (Rev. E) Oct. 20, 2017
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) May 08, 2019
Technical article How to select a temperature sensor probe Feb. 18, 2016
More literature Analog Temperature Sensors Apr. 18, 2013
User guide Using the LMT84-7 Evaluation Board Feb. 06, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
75
Description

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.

Features
  • Evaluation board for variety of analog temperature sensor products
  • The board is user-friendly and has access to the temp sensor output pins
  • Design tools & simulation

    CALCULATION TOOL Download
    SNIC007.ZIP (5 KB)

    CAD/CAE symbols

    Package Pins Download
    SC70 (DCK) 5 View options
    TO-92 (LP) 3 View options
    TO-92 (LPG) 3 View options

    Ordering & quality

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    • Lead finish/Ball material
    • MSL rating/Peak reflow
    • MTBF/FIT estimates
    • Material content
    • Qualification summary
    • Ongoing reliability monitoring

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