I2C HUMIDITY AND TEMPERATURE SENSOR
Si7020-A20
I2C HUMIDITY AND TEMPERATURE SENSOR
Features
Precision Relative Humidity Sensor Factory-calibrated
...
Description
Si7020-A20
I2C HUMIDITY AND TEMPERATURE SENSOR
Features
Precision Relative Humidity Sensor Factory-calibrated
± 4% RH (max), 0–80% RH
I2C Interface
High Accuracy Temperature Sensor Integrated on-chip heater
±0.4 °C (max), –10 to 85 °C
3x3 mm DFN Package
0 to 100% RH operating range
Excellent long term stability
Up to –40 to +125 °C operating
Optional factory-installed cover
range
Low-profile
Wide operating voltage (1.9 to 3.6 V)
Low Power Consumption
Protection during reflow Excludes liquids and particulates
150 µA active current
60 nA standby current
Ordering Information: See page 29.
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
Description
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 sen...
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