Changsha Purple Horn E-Commerce Co., Ltd.
| Humidity Tolerance | ±4%RH |
| Temperature Range | -40℃~+125℃ |
| Humidity | 0%RH~100%RH |
| Temperature Tolerance | ±0.4℃ |
| Description | ±4%RH -40℃~+125℃ 0%RH~100%RH DFN-6(3x3) Humidity, Moisture Sensors RoHS |
| Mfr. Part # | SI7020-A20-GM1R |
| Package | DFN-6(3x3) |
| Model Number | SI7020-A20-GM1R |
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Product Specification
| Humidity Tolerance | ±4%RH | Temperature Range | -40℃~+125℃ |
| Humidity | 0%RH~100%RH | Temperature Tolerance | ±0.4℃ |
| Description | ±4%RH -40℃~+125℃ 0%RH~100%RH DFN-6(3x3) Humidity, Moisture Sensors RoHS | Mfr. Part # | SI7020-A20-GM1R |
| Package | DFN-6(3x3) | Model Number | SI7020-A20-GM1R |
The Si7020-A20 is an I2C Humidity and Temperature Sensor from Silicon Laboratories. This monolithic CMOS IC integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, and calibration data. It offers precision sensing with low drift, hysteresis, and excellent long-term stability, thanks to its patented use of low-K polymeric dielectrics. The sensor is factory-calibrated and fully interchangeable. Available in a 3x3 mm DFN package, it serves as a drop-in upgrade for existing sensors, providing higher precision and lower power consumption. An optional factory-installed cover protects the sensor from liquids and particulates. It is ideal for applications requiring accurate humidity, dew-point, and temperature measurements, including HVAC/R, thermostats, respiratory therapy, white goods, and asset tracking.
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
| Recommended Operating Conditions | ||||||
| Power Supply | VDD | 1.9 | 3.6 | V | ||
| Operating Temperature (I and Y grade) | TA | 40 | +125 | C | ||
| Operating Temperature (G grade) | TA | 40 | +85 | C | ||
| General Specifications | ||||||
| Input Voltage High | VIH | 0.7xVDD | V | SCL, SDA pins | ||
| Input Voltage Low | VIL | 0.3xVDD | V | SCL, SDA pins | ||
| Input Voltage Range | VIN | 0.0 | VDD | V | SCL, SDA pins with respect to GND | |
| Input Leakage | IIL | 1 | A | SCL, SDA pins | ||
| Output Voltage Low | VOL | 0.6 | V | SDA pin; IOL = 2.5 mA; VDD = 3.3 V | ||
| Output Voltage Low | VOL | 0.4 | V | SDA pin; IOL = 1.2 mA; VDD = 1.9 V | ||
| Current Consumption (RH conversion) | IDD | 150 | 180 | A | ||
| Current Consumption (Temp conversion) | IDD | 90 | 120 | A | ||
| Standby Current (40 to +85 C) | IDD | 0.06 | 0.62 | A | No conversion or I2C transaction in progress. Typical values measured at 25 C. | |
| Standby Current (40 to +125 C) | IDD | 0.06 | 3.8 | A | No conversion or I2C transaction in progress. Typical values measured at 25 C. | |
| Peak IDD during powerup | IDD | 3.5 | 4.0 | mA | Occurs once during powerup. Duration is <5 msec. | |
| Peak IDD during I2C operations | IDD | 3.5 | 4.0 | mA | Occurs during I2C commands for Reset, Read/Write User Registers, Read EID, and Read Firmware Version. Duration is <100 s when I2C clock speed is >100 kHz. | |
| Heater Current | IHEAT | 3.1 | 94.2 | mA | Additional current consumption when HTRE bit enabled. | |
| Conversion Time (12-bit RH) | tCONV | 10 | 12 | ms | Initiating a RH measurement will also automatically initiate a temperature measurement. | |
| Conversion Time (14-bit temperature) | tCONV | 7 | 10.8 | ms | Initiating a RH measurement will also automatically initiate a temperature measurement. | |
| Powerup Time (VDD 1.9 V to ready, 25 C) | tPU | 18 | 25 | ms | ||
| Powerup Time (VDD 1.9 V to ready, full temp range) | tPU | 80 | ms | |||
| Powerup Time (after software reset) | tPU | 5 | 15 | ms | ||
| I2C Interface Specifications | ||||||
| Hysteresis | VHYS | 0.05 x VDD | V | High-to-low versus low-to- high transition | ||
| SCLK Frequency | fSCL | 400 | kHz | |||
| SCL High Time | tSKH | 0.6 | s | |||
| SCL Low Time | tSKL | 1.3 | s | |||
| Start Hold Time | tSTH | 0.6 | s | |||
| Start Setup Time | tSTS | 0.6 | s | |||
| Stop Setup Time | tSPS | 0.6 | s | |||
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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