Product Descriptions

The Si7020 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-

to-digital converter, signal processing, calibration data, and an I2C Interface. The patented use of industry-standard, low-K polymeric dielectrics 

for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long term 

stability.

The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This 

ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

The Si7020 is available in a 3x3 mm DFN package and is reflow solderable. It can be used as a hardware- and software-compatible drop-in 

upgrade for existing RH/ temperature sensors in 3x3 mm DFN-6 packages, featuring precision sensing over a wider range and lower power 

consumption. The optional factory-installed cover offers a low profile, convenient means of protecting the sensor during assembly (e.g., reflow 

soldering) and throughout the life of the product, excluding liquids (hydrophobic/oleophobic) and particulates.

The Si7020 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature, in 

applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.

Product Applications

 HVAC/R

 Thermostats/humidistats

 Respiratory therapy

 White goods

 Indoor weather stations

 Micro-environments/data centers

 Automotive climate control and defogging

 Asset and goods tracking

 Mobile phones and tablets

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