STTS22H – Low-voltage, ultra-low-power, 0.5 °C accuracy I2C/SMBus 3.0 temperature sensor

STTS22H – Low-voltage, ultra-low-power, 0.5 °C accuracy I2C/SMBus 3.0 temperature sensor

The STTS22H is an ultra-low-power, high accuracy, digital temperature sensor offering high performance over the entire operating temperature range.

The STTS22H is a band gap temperature sensor coupled with an A/D converter, signal processing logic and an I²C/SMBus 3.0 interface all in a single ASIC.

This sensor is housed in a small 2 x 2 x 0.50 mm 6-lead UDFN package with exposed pad down for a better temperature match with the surrounding environment.

The STTS22H is factory calibrated and requires no additional calibration efforts on the customer side.


  • Key features
    • Integrated high-accuracy temperature sensor
    • Factory calibrated
    • One-shot mode for power saving
  • Electrical specifications
    • Supply voltage: 1.5 to 3.6 V
    • I²C, SMBus 3.0 with ALERT (ARA) support
    • Programmable thresholds with interrupt pin
    • Supports up to 1 MHz serial clock
    • Up to 2 I²C/SMBus slave addresses
    • Ultra-low current: 1.75 µA in one-shot mode
  • Sensing specifications
    • Operating temperature -40 °C to +125 °C
    • Temperature accuracy (max.): ± 0.5 °C (-10 °C to +60 °C)
    • 16-bit temperature data output
  • Package specifications
    • UDFN 2.0 x 2.0 x 0.50 mm, 6 leads with exposed pad down
    • ECOPACK, RoHS and “Green” compliant

more information:

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Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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Wow. Thanks for sharing this informative article. Keep posting. It helps alot!

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