SI7013-A20

Si7013-A20 I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR Features  Precision Relative Humidity Sensor  Factory-calibrated  ± 3% RH (max), 0–80% RH  I2C Interface  High Accuracy Temperature Sensor  Integrated on-chip heater ±0.4 °C (max), –10 to 85 °C  Auxiliary Sensor input  0 to 100% RH operating range Direct readout of remote  Up to –40 to +125 °C operating thermistor temperature in °C range  Package: 3x3 mm DFN  Low Voltage Operation (1.9 to 3.6 V)  Excellent long term stability  Low Power Consumption  Optional factory-installed cover 150 μA active current Low-profile 60 nA standby current Protection during reflow Excludes liquids and particulates Applications  HVAC/R  Thermostats/humidistats  Instrumentation  White goods  Micro-environments/data centers  Industrial Controls  Indoor weather stations Description The Si7013 I2C Humidity and 2-Zone 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 ...