Product details

Local sensor accuracy (Max) (+/- C) 0.3 Type Local Operating temperature range (C) -55 to 150, -55 to 175 Supply voltage (Min) (V) 1.62 Interface type SPI Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 1.2 Temp resolution (Max) (bits) 14 Features ALERT, CRC, NIST traceable, One-shot conversion, Slew Rate Warning Remote channels (#) 0 Addresses 1 Rating Catalog
Local sensor accuracy (Max) (+/- C) 0.3 Type Local Operating temperature range (C) -55 to 150, -55 to 175 Supply voltage (Min) (V) 1.62 Interface type SPI Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 1.2 Temp resolution (Max) (bits) 14 Features ALERT, CRC, NIST traceable, One-shot conversion, Slew Rate Warning Remote channels (#) 0 Addresses 1 Rating Catalog
SOT-SC70 (DCK) 6 4 mm² 2 x 2.1
  • High accuracy
    • TMP126:
      • ±0.25°C (maximum) from 20°C to 30°C
      • ±0.3°C (maximum) from –20°C to 85°C
      • ±0.4°C (maximum) from –40°C to 125°C
      • ±0.5°C (maximum) from –55°C to 150°C
      • ±0.75°C (maximum) from 150°C to 175°C
    • TMP126N:
      • ±0.8°C (maximum) from –40°C to 150°C
  • Fast measurement intervals with no self-heating concerns
  • Operating temperature range:
    • TMP126: –55°C to 175°C
    • TMP126N: –40°C to 150°C

  • Supply range: 1.62 V to 5.5 V
  • Factory-calibrated
    • NIST traceability
  • Low power consumption
  • Programmable temperature alert limits
  • Temperature slew rate warning
  • Optional Cyclic Redundancy Check (CRC)
  • 3-wire SPI interface
  • High accuracy
    • TMP126:
      • ±0.25°C (maximum) from 20°C to 30°C
      • ±0.3°C (maximum) from –20°C to 85°C
      • ±0.4°C (maximum) from –40°C to 125°C
      • ±0.5°C (maximum) from –55°C to 150°C
      • ±0.75°C (maximum) from 150°C to 175°C
    • TMP126N:
      • ±0.8°C (maximum) from –40°C to 150°C
  • Fast measurement intervals with no self-heating concerns
  • Operating temperature range:
    • TMP126: –55°C to 175°C
    • TMP126N: –40°C to 150°C

  • Supply range: 1.62 V to 5.5 V
  • Factory-calibrated
    • NIST traceability
  • Low power consumption
  • Programmable temperature alert limits
  • Temperature slew rate warning
  • Optional Cyclic Redundancy Check (CRC)
  • 3-wire SPI interface

The TMP126 is a 0.25°C accuracy digital temperature that supports an ambient temperature range of –55°C to 175°C. The TMP126 features a 14-bit signed temperature resolution (0.03125°C per LSB) while operating over a supply range of 1.62 V to 5.5 V. With a fast conversion rate, low supply current, and a simple 3-wire SPI compatible interface, the TMP126 is designed for a wide range of applications.

The TMP126 includes additional advanced features for increased reliability in harsh environments such as optional CRC checksum for data integrity, programmable alert limits, a temperature slew rate warning, and an enhanced operational temperature range. The device utilizes a NIST traceable factory calibration for guaranteed accuracy and comes in a small SOT package for close placement to heat sources along with fast response times.

The TMP126 is a 0.25°C accuracy digital temperature that supports an ambient temperature range of –55°C to 175°C. The TMP126 features a 14-bit signed temperature resolution (0.03125°C per LSB) while operating over a supply range of 1.62 V to 5.5 V. With a fast conversion rate, low supply current, and a simple 3-wire SPI compatible interface, the TMP126 is designed for a wide range of applications.

The TMP126 includes additional advanced features for increased reliability in harsh environments such as optional CRC checksum for data integrity, programmable alert limits, a temperature slew rate warning, and an enhanced operational temperature range. The device utilizes a NIST traceable factory calibration for guaranteed accuracy and comes in a small SOT package for close placement to heat sources along with fast response times.

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Type Title Date
* Data sheet TMP126 Low-Power, 0.25°C SPI Temperature Sensor With 175°C Operation, CRC and Slew Rate Alert datasheet (Rev. C) PDF | HTML 03 Jun 2022
Certificate TMP126EVM EU RoHS Declaration of Conformity (DoC) 06 Feb 2023
Application note Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing PDF | HTML 03 Jan 2022
Application note Temperature Slew Rate Warning Overview PDF | HTML 09 Nov 2021
EVM User's guide TMP126EVM User's Guide PDF | HTML 05 May 2021
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
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
Technical article How to select a temperature sensor probe 18 Feb 2016

Design & development

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Evaluation board

TMP126EVM — TMP126 evaluation module for high-precision SPI temperature sensors

The TMP126-Q1 is a high-accuracy, 0.5°C digital temperature sensor that supports an ambient temperature range of -55°C to 175°C. The TMP126-Q1 features a 14-bit signed temperature resolution (0.03125°C per LSB) while operating over a supply range of 1.62 V to 5.5 V. The device has (...)

User guide: PDF | HTML
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