Sensirion STS40 ±0.2°C Ultra-low-power temperature sensor

Sensirion STS40 ±0.2°C Ultra-low-power temperature sensor


Sensirion STS40 Temperature Sensors are fully digital, high-accuracy I2C temperature sensors. These ultra-low power consumption sensors feature a compact 4 pin DFN SMT package, along with multiple preconfigured I2C addresses for flexible integration into various systems. Sensirion STS40 Temperature Sensors feature flexible operating conditions, with an operating temperature between -40°C and +125°C, as well as a supply voltage range between 1.08V and 3.6V.


  • Temperature accuracy up to ±0.2°C
  • 1.08V to 3.6V supply voltage
  • 0.4μA average current (at 1Hz measure rate)
  • 80nA idle current
  • I2C fast mode plus, CRC checksum
  • Available with multiple I2C addresses
  • -40°C to +125°C operating temperature range
  • NIST traceability

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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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