Sensirion SGP41 CMOSens®/MOXSens® Digital Air Quality Sensor

Sensirion SGP41 CMOSens®/MOXSens® Digital Air Quality Sensor

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Sensirion SGP41 CMOSens®/MOXSens® Digital Air Quality Sensor is a complete, easy-to-use sensor system on a single chip featuring a digital I2C interface and temperature-controlled micro hotplates, providing one VOC and one NOx based indoor air quality signal. The sensing element and Gas Index Algorithm feature high robustness against contaminating gases present in air-quality applications enabling unique long-term stability and low drift. Measuring 2.44mm2 x 0.85mm, the DFN packaged gas sensor enables applications in limited spaces. The Sensirion SGP41 CMOSens®/MOXSens® Digital Air Quality Sensor is designed for easy integration into air purifiers or demand-controlled ventilation systems.

Features

  • MOx-based gas sensor for air quality applications
  • Long-term stability and lifetime (>10 years)
  • I2C interface with digital output signals
  • Small 6-pin DFN package measuring 2.44mm2 x 0.85mm
  • Low power consumption of 3.2mA at 3.3V
  • Reflow solderable

Specifications

  • Performance
    • Output signal range
      • 500 VOC and NOx index points
      • 65,535 ticks, digital raw value
    • Measurement ranges
      • 0 to 1,000,000ppb Ethanol in clean air, 500ppb to 10,000ppb specified
      • 0 to 10,000ppb NO2 in clean air, 50ppb to 650ppb specified
    • Device-to-device variation
      • <±15 VOC index points
      • <±50 NOx index points
    • Repeatability
      • <±5 VOC index points
      • <±10 NOx index points
    • 0.5s to 10s sampling interval range
  • Electrical
    • 1.7V to 3.6V supply voltage range
    • 105µA maximum idle current
    • 3.2mA to 6.9mA operation supply current range
  • Timing
    • 0.6ms maximum power-up and soft reset time, 0.4ms typical
    • 400kHz SCL clock frequency
  • Temperature ranges
    • -10°C to +50°C operating
    • +5°C to +30°C storage
  • Relative humidity
    • 0 to 90% operating
    • 0 to 80% storage

more information:  https://www.sensirion.com/kr/environmental-sensors/gas-sensors/sgp41/

Mike is the founder and editor of Electronics-Lab.com, 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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