Si7034-A10 Digital I2C Humidity and Temperature Sensor

The Si7034 I2C Humidity and Temperature Sensor is a monolithic CMOS IC that integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, and calibration data with an I2C interface. Utilizing patented low-K polymeric dielectrics for humidity sensing, it offers low power consumption, minimal drift and hysteresis, and excellent long-term stability. The sensor is factory-calibrated, with data stored in on-chip non-volatile memory, ensuring interchangeability without calibration adjustments. Available in a 2x2 mm DFN package, it is reflow solderable and serves as a drop-in upgrade for existing RH/temperature sensors in 2x2 mm QFN-6 packages. This sensor provides an accurate, low-power, factory-calibrated digital solution for measuring humidity, dew point, and temperature, suitable for a wide range of applications including HVAC/R, asset tracking, industrial, and consumer platforms.

Key Features

• Precision Relative Humidity Sensor: 4% RH (max), 080% RH
• High Accuracy Temperature Sensor: 0.4 C (max), 10 to 85 C
• 0 to 100% RH operating range
• 40 to +125 C operating range
• Low Voltage Operation
• Low Power Consumption: 50 nA standby current
• Factory-calibrated
• I2C Interface
• Integrated on-chip heater
• 2x2 mm QFN package
• Excellent long term stability

Applications

• Mobile smartphones and tablets
• Consumer electronics
• HVAC/R
• Respiratory therapy
• White goods
• Asset and goods tracking
• Thermostats/humidistats
• Micro-environments/data centers
• Indoor weather stations

Technical Specifications

Product Attributes

• Brand: Silicon Laboratories
• Model: Si7034-A10
• Package: 2x2 mm DFN (also compatible with 2x2 mm QFN-6)
• Material: Monolithic CMOS IC with low-K polymeric dielectrics for humidity sensing
• Certifications: Patent Protected