SI7005-B-FM1

SI7005-B-FM1
Digital I2C humidity and temperature sensor, QFN24, Silicon Labs, RoHS

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The Si7005 is a digital relative humidity and temperature sensor. This monolithic CMOS IC integrates temperature and humidity sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C host interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of a low-power, monolithic CMOS sensor IC with low drift and hysteresis and excellent long term stability.

Features:

• Relative Humidity Sensor:
• ± 4.5% RH (maximum @ 20–80% RH)
• Temperature Sensor:
  • ±0.5 oC accuracy (typical)
  • ±1 oC accuracy (maximum @ 0 to 70 °C)
• 0 to 100% RH operating range
• –40 to +85 oC (-GM)
• 0 to +70 oC operating range (-FM)
• Wide operating voltage range (2.1 to 3.6 V)
• Low Power Consumption: 240 µA during RH conversion
• I²C host interface
• Integrated on-chip heater
• 4 mm x 4 mm QFN package
• Excellent long term stability
• Factory calibrated
• Optional factory-installed filter/cover
• Low-profile
• Protection during reflow
• Excludes liquids and particulates (hydrophobic/oleophobic)

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