Silicon Labs

SI7020-A20-GM1R  

Board Mount Humidity Sensors

The Silicon Labs SI7020-A20-GM1R is a highly integrated, low-power, I2C-compatible relative humidity and temperature sensor. It is designed to provide accurate and reliable measurements in a wide range of applications, including weather stations, home automation, HVAC control systems, and industrial monitoring.

Description:

The SI7020-A20-GM1R is a compact, surface-mount device that measures 3.0mm x 3.0mm and has a height of 1.1mm. It features a precision sensor element for relative humidity and temperature, along with an integrated 12-bit analog-to-digital converter (ADC) for high-resolution measurements. The device operates from a 1.71V to 3.6V supply voltage and communicates via a standard I2C interface.

Features:

1. High Accuracy: The sensor provides ±3% RH accuracy and ±0.4°C temperature accuracy, ensuring reliable measurements in various environmental conditions.
2. Low Power Consumption: The SI7020-A20-GM1R operates with a typical current consumption of 280µA during active mode and 2.2µA in standby mode, making it suitable for battery-powered applications.
3. I2C-Compatible: The device uses a standard I2C interface for easy integration with microcontrollers and other I2C-based systems.
4. Wide Measurement Range: The sensor can measure relative humidity from 0% to 100% and temperature from -40°C to +125°C.
5. Small Form Factor: The compact size of the SI7020-A20-GM1R makes it ideal for space-constrained applications.
6. Integrated ADC: The built-in 12-bit ADC provides high-resolution measurements without the need for external components.
7. Programmable Measurement Rate: The measurement rate can be programmed to optimize power consumption for specific applications.

Applications:

1. Weather Stations: The SI7020-A20-GM1R can be used to measure humidity and temperature in weather stations for accurate weather forecasting and monitoring.
2. Home Automation: The sensor can be integrated into home automation systems to control heating, ventilation, and air conditioning (HVAC) based on indoor humidity and temperature levels.
3. HVAC Control Systems: The SI7020-A20-GM1R can be used in HVAC systems to maintain optimal indoor climate conditions by adjusting temperature and humidity levels.
4. Industrial Monitoring: The sensor can be employed in industrial settings to monitor and control humidity and temperature in manufacturing facilities, data centers, and other critical environments.
5. Medical Equipment: The SI7020-A20-GM1R can be used in medical equipment to maintain precise environmental conditions for patient care and equipment operation.
6. Agriculture: The sensor can be utilized in agricultural applications to monitor humidity and temperature levels in greenhouses and storage facilities, ensuring optimal growth conditions for crops.

SI7020-A20-GM1R Documents

Download datasheets and manufacturer documentation for SI7020-A20-GM1R

PCN Assembly/Origin :

Site Change 18/Jan/2022      

Datasheets :

SI7020-A20 Datasheet      

PCN Packaging :

Labeling Change 14/Dec/2021       Mult Dev Label Chgs 20/Oct/2021      

PCN Other :

PCN-1506262 26/Jun/2015      

PCN Design/Specification :

PB-1506261 26/Jun/2015       Humidity Sensor Update 15/Sep/2015