Product details

Local sensor accuracy (Max) (+/- C) 0.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 10 Temp resolution (Max) (bits) 12 Features ALERT, One-shot conversion, NIST traceable Remote channels (#) 0 Addresses 4 Rating Catalog
Local sensor accuracy (Max) (+/- C) 0.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 10 Temp resolution (Max) (bits) 12 Features ALERT, One-shot conversion, NIST traceable Remote channels (#) 0 Addresses 4 Rating Catalog
SOT-5X3 (DRL) 6 2 mm² 1.65 x 1.2
  • TMP112A Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (3.3 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112B Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (1.8 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112N Accuracy Without Calibration:
    • 1.0°C (Maximum) From –40°C to +125°C
  • SOT563 Package (1.6 mm × 1.6 mm)
  • Low Quiescent Current:
    • 10-µA Active (Maximum), 1-µA Shutdown (Maximum)
  • Supply Range: 1.4 V to 3.6 V
  • Resolution: 12 Bits
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • NIST Traceable
  • TMP112A Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (3.3 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112B Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (1.8 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112N Accuracy Without Calibration:
    • 1.0°C (Maximum) From –40°C to +125°C
  • SOT563 Package (1.6 mm × 1.6 mm)
  • Low Quiescent Current:
    • 10-µA Active (Maximum), 1-µA Shutdown (Maximum)
  • Supply Range: 1.4 V to 3.6 V
  • Resolution: 12 Bits
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • NIST Traceable

The TMP112 family of devices are digital temperature sensors designed for high-accuracy, low-power, NTC/PTC thermistor replacements where high accuracy is required. The TMP112A and TMP112B offers 0.5°C accuracy and are optimized to provide the best PSR performance for 3.3V and 1.8V operation respectively, while TMP112N offers 1°C accuracy. These temperature sensors are highly linear and do not require complex calculations or lookup tables to derive the temperature. 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 family 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.

The TMP112 family is designed for extended temperature measurement in communication, computer, consumer, environmental, industrial, and instrumentation applications. The device is specified for operation over a temperature range of –40°C to +125°C.

The TMP112 family production units are 100% tested against sensors that are NIST-traceable and are verified with equipment that are NIST-traceable through ISO/IEC 17025 accredited calibrations.

The TMP112 family of devices are digital temperature sensors designed for high-accuracy, low-power, NTC/PTC thermistor replacements where high accuracy is required. The TMP112A and TMP112B offers 0.5°C accuracy and are optimized to provide the best PSR performance for 3.3V and 1.8V operation respectively, while TMP112N offers 1°C accuracy. These temperature sensors are highly linear and do not require complex calculations or lookup tables to derive the temperature. 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 family 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.

The TMP112 family is designed for extended temperature measurement in communication, computer, consumer, environmental, industrial, and instrumentation applications. The device is specified for operation over a temperature range of –40°C to +125°C.

The TMP112 family production units are 100% tested against sensors that are NIST-traceable and are verified with equipment that are NIST-traceable through ISO/IEC 17025 accredited calibrations.

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Technical documentation

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Type Title Date
* Data sheet TMP112x High-Accuracy, Low-Power, Digital Temperature Sensors With SMBus and Two-Wire Serial Interface in SOT563 datasheet (Rev. I) PDF | HTML 21 Dec 2018
Application note Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing PDF | HTML 03 Jan 2022
Application note How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy PDF | HTML 22 Sep 2020
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Application note High-Performance Processor Die Temperature Monitoring (Rev. A) 17 Oct 2019
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Application note Low-Power Design Techniques for Temperature-Sensing Applications 06 Jun 2019
Application note How to monitor board temperature 28 Jan 2019
Application note Temperature sensing fundamentals 28 Jan 2019
Application note Temperature sensors: PCB guidelines for surface mount devices (Rev. A) 18 Jan 2019
Application note Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response (Rev. B) 23 Oct 2018
Application note Ambient Temperature Measurement Layout Considerations 16 Jul 2018
Application note Calculating Useful Lifetimes of Temperature Sensors 06 Jul 2018
Technical article Real-time temperature sensing with dual-mode connectivity 03 Nov 2016

Design & development

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IDE, configuration, compiler or debugger

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