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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