Product details

Local sensor accuracy (Max) (+/- C) 0.25 Type Local Operating temperature range (C) -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 Automotive TI functional safety category Functional Safety-Capable
Local sensor accuracy (Max) (+/- C) 0.25 Type Local Operating temperature range (C) -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 Automotive TI functional safety category Functional Safety-Capable
SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 6 4 mm² 2 x 2.1
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade-0: –55°C to 175°C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C2b
  • Function Safety Capable
  • High accuracy
    • ±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
  • Fast measurement intervals with no self-heating concerns
  • 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
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade-0: –55°C to 175°C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C2b
  • Function Safety Capable
  • High accuracy
    • ±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
  • Fast measurement intervals with no self-heating concerns
  • 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-Q1 is a 0.25°C accuracy digital temperature 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. With a fast conversion rate, low supply current, and a simple 3-wire SPI compatible interface, the TMP126-Q1 is designed for a wide range of applications.

The TMP126-Q1 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-Q1 is a 0.25°C accuracy digital temperature 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. With a fast conversion rate, low supply current, and a simple 3-wire SPI compatible interface, the TMP126-Q1 is designed for a wide range of applications.

The TMP126-Q1 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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Technical documentation

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* Data sheet TMP126-Q1 Low-Power, 0.25°C SPI Temperature Sensor With 175°C Operation, CRC and Slew Rate Alert datasheet (Rev. C) PDF | HTML 23 Jun 2022
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
Functional safety information TMP126-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 23 Jul 2021
Technical article How to maximize powertrain efficiency and reliability with high-accuracy temperature sensors 10 May 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

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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SC70 (DCK) 6 View options
SOT-23 (DBV) 6 View options

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