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Sensirion STS3x-DIS Humidity & Temperature Sensors

Sensirion STS3x-DIS Humidity and Temperature Sensors feature increased intelligence, reliability, and improved accuracy specifications. The sensors offer a wide supply voltage range, communication speeds of up to 1MHz, and are available in an 8-pin DFN package. Sensirion's CMOSens® technology provides the sensors with long-term stability along with high reliability. The STS3x-DIS components also have enhanced signal processing and two distinctive and user-selectable I2C addresses.

Features

  • Fully calibrated and linearized digital-output
  • Wide supply voltage range from 2.4V to 5.5V
  • I2C Interface with communication speeds up to 1MHz and two user-selectable addresses
  • High reliability and long-term stability
  • Designed for mass production
  • Typical accuracy of ±0.3°C
  • Very fast start-up and measurement time
  • Tiny 8-Pin DFN package
  • NIST traceability
  • High process capability
  • High signal-to-noise ratio

Applications

  • Automotive
  • Medical
  • Consumer
  • Industrial

Specifications

  • Performance
    • Accuracy tolerance 
      • ±0.2°C typical for the STS30, 0 to +65°C
      • ±0.2°C typical for the STS31, 0 to +90°C
      • ±0.1°C typical for the STS35, +20°C to +60°C
    • +0.04°C to +0.15°C repeatability range
    • +0.01°C typical resolution
    • -40°C to +125°C specified range
    • >2s response time
    • <+0.03°C/yr maximum long term drift
  • Electrical
    • 2.15V to 5.5V supply voltage range
    • 1.8V to 2.15V power-up/-down level range
    • 20V/ms slew rate change of the supply voltage
    • Supply current
      • 2.0µA to 6.0µA maximum idle state in single-shot mode
      • 45µA typical idle state in periodic data acquisition mode
      • 1500µA maximum measuring, 600µA typical
      • 1.7µA typical average
    • 3.6mW to 33mW heater power
  • Timing
    • 1.5ms maximum power-up time, 0.5ms typical
    • 1.5ms maximum soft reset time, 0.5ms typical
    • 1µs minimum duration of the reset pulse
    • Measurement duration
      • 4.5ms maximum at low repeatability, 2.5ms typical
      • 6.5ms maximum at medium repeatability, 4.5ms typical
      • 15.5ms maximum at high repeatability, 12.5ms typical
  • Absolute maximum ratings
    • -0.3V to 6V supply voltage range
    • ±100mA input current on any pin
    • Temperature ranges
      • -40°C to +125°C operating
      • -40°C to +150°C storage
    • ESD
      • 4kV human body model (HBM)
      • 750V charge device model (CDM)
  • Communication timing
    • 0 to 1000kHz SCL clock frequency
    • 0.24µs hold-time START condition
    • SCL clock
      • 0.26µs HIGH period
      • 0.53µs LOW period
    • SDA times
      • 0 to 250ns hold time
      • 100ns minimum set-up time
      • 0.9µs maximum valid time
    • 300ns maximum rise/fall SCL/SDA time
    • 0.26µs minimum set-up time for repeated START and STOP conditions
    • 400pF maximum capacitive load on the bus line
    • 0.4V maximum low-level output voltage

Functional Block Diagram

Block Diagram - Sensirion STS3x-DIS Humidity & Temperature Sensors

Temperature Accuracy Graphs

Performance Graph - Sensirion STS3x-DIS Humidity & Temperature Sensors

Additional Resources

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Published: 2016-10-13 | Updated: 2024-05-08