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Automotive 1.4V-Capable ±0.5°C Temperature Sensor With Alert Function and I2C/SMBus


Package | PIN: DRL | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.10
10-24 $1.88
25-99 $1.75
100-249 $1.52
250-499 $1.40
500-749 $1.18
750-999 $0.97
1000+ $0.89


  • AEC-Q100 Qualified With:
    • Temperature Grade 1: –40°C to 125°C Ambient Operating TemperatureRange
    • Device HBM ESD Classification Level 2
    • Device CDM ESDClassification Level C6
  • SOT563 Package (1.6 mm × 1.6 mm) is a 68% Smaller Footprint than SOT23
  • Accuracy Without Calibration:
    • 0.5°C (max) from 0°C to 65°C
    • 1°C (max) from –40°C to125°C
  • Low Quiescent Current:
    • 10-µA Active (max)
    • 1-µA Shutdown (max)
  • Supply Range: 1.4 to 3.6 V
  • Resolution: 12 Bits
  • Digital Output: SMBus, Two-Wire and I2C Interface Compatibility
  • NIST Traceable

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Texas Instruments  TMP112AQDRLRQ1

The TMP112-Q1 device is a digital temperature sensor ideal for NTC/PTC thermistorreplacement where high accuracy is required. The device offers an accuracy of ±0.5°C withoutrequiring calibration or external component signal conditioning. Device temperature sensors arehighly linear and do not require complex calculations or lookup tables to derive the temperature.The calibrating for improved accuracy feature allows users to calibrate for an accuracy as good as±0.17°C (see the Calibrating for Improved Accuracy section).The on-chip 12-bit ADC offers resolutions down to 0.0625°C.

The 1.6-mm × 1.6-mm SOT563 package is 68% smaller footprint than an SOT23 package. TheTMP112-Q1 device features SMBus™, two-wire andI2C interface compatibility, and allows up to four devices on one bus.The device also features an SMBus alert function. The device is specified to operate over supplyvoltages from 1.4 to 3.6 V with the maximum quiescent current of 10 µA over the full operatingrange.

The TMP112-Q1 device is ideal for extended temperature measurement in control units,climate control, infotainment, and sensor modules. The device is specified for operation over atemperature range of –40°C to 125°C.

The TMP112-Q1 production units are 100% tested against sensors that are NIST-traceableand are verified with equipment that are NIST-traceable through ISO/IEC 17025 accreditedcalibrations.