LMT85-Q1

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Automotive Grade, 1.8V-Capable, 10 uA Analog Output Temperature Sensor

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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 Automotive 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 open-in-new Find other Analog temperature sensors

Features

  • LMT85-Q1 is AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 0: –40°C to +150°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • 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-Q1 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 LMT85-Q1 device is AEC-Q100 Grade 0 qualified and maintains ±2.7°C maximum accuracy over the full operating temperature range without calibration; this makes the LMT85-Q1 suitable for automotive applications such as infotainment, cluster, and powertrain systems. The accuracy over the wide operating range and other features make the LMT85-Q1 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-Q1 1.8-V, SC70, Analog Temperature Sensors datasheet 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

Design & development

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Design tools & simulation

CALCULATION TOOL Download
SNIC007.ZIP (5 KB)

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options

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