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TMP112AQDRLRQ1 Overview

The TMP112-Q1 device is a digital temperature sensor designed for NTC/PTC thermistor replacement where high accuracy is required. The device offers an accuracy of ±0.5°C without requiring calibration or external component signal conditioning. Device temperature sensors are highly 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. The TMP112-Q1 device features SMBus , two-wire and I2C 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 supply voltages from 1.4 to 3.6 V with the maximum quiescent current of 10 μA over the full operating range.



  • AEC-Q100 qualified with:
    • Temperature grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • SOT563 package (1.6 mm × 1.6 mm) is a 68% smaller footprint than SOT23
  • Accuracy without calibration:
    • 0.5°C (maximum) from 0°C to 65°C
    • 1°C (maximum) from –40°C to 125°C
  • Low quiescent current:
    • 10-μA active (maximum)
    • 1-μA shutdown (maximum)
  • Supply range: 1.4 to 3.6 V
  • Resolution: 12 bits
  • Digital output: SMBus, two-wire and I2C interface compatibility
  • NIST traceable

Product Parameters

  • genericPartNumber


  • partDescription

    Automotive ±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package

  • statusDescription

    This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

  • packageQtyCarrier

    4000|LARGE T&R

  • orderablePartNumber


  • statusDisplay


  • packageQuantity


  • packagePins

    SOT-5X3 (DRL)|6

Technical Documents

  • Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. SensingDetails>>

  • TMP112-Q1 Functional Safety FIT Rate, FMD and Pin FMADetails>>

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