Integrated Device Technology - Relative Humidity Sensor



Humidity Sensor Specification, TA = +25°C, VDD = 2.3V to 5.5V


IDT's relative humidity sensors offer high accuracy and fast measurement response times, enabling customers to improve overall system performance and feedback control. The humidity sensor ICs feature excellent long-term stability as a result of a robust silicon carbide construction and an innovative design, improving useful lifetime and lowering effective cost.

The HS300x family of relative humidity sensors feature a ±1.5% RH accuracy and six-second response time (rated 20% to 80% RH range in still air and does not require airflow).



Features

• Silicon carbide structure
• ±1.5%RH accuracy (HS3001)
• Fast RH response time (Typical 6 seconds)
• 0.1%RH per year drift
• 14-bit resolution: 0.01%RH (Typ.)
• Low power consumption: 1.0μA average
• Digital/Analog output
• Extended supply voltage: 2.3 to 5.5 V



Application

• Measurement of water vapor content in medical oxygen
• Measurement of humidity in appliances such as refrigerators
• Monitoring the humidity of air in industrial processes
• Climate control systems (HVAC)
• Weather stations
• Portable personal health devices



Key Components

• HS3001, HS3002, HS3003, HS3004



Benefits

• Integrated temperature and humidity sensing solution
• Small form factor solution with lower system cost
• Low power consumption saves battery
• 14-bit high resolution provides extremely tight accuracy
• Insensitive to environmental contaminants like dirt and dust
• Small solution size saves space and BOM for compact designs
• On board calibration reduces time to market
• Wide supply voltage range eliminates the need for LDO/DC-DC
• Fast RH response time (Typical 6 seconds)



Video:

• IDT HS300x Relative Humidity Sensor ICs



Table






Downloads:

• hs300x-datasheet
• sdah01 evaluation kit user guide
• sdah02 kit user guide
• relative humidity sensor family overview
• sensing technologies and sensor solutions overview







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