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I2C interface humidity temperature sensor SILICON LABS SI7020-A20-GM1 for automotive climate control

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I2C interface humidity temperature sensor SILICON LABS SI7020-A20-GM1 for automotive climate control

Description : DFN-6-EP(3x3) Humidity, Moisture Sensors RoHS

Mfr. Part # : SI7020-A20-GM1

Model Number : SI7020-A20-GM1

Package : DFN-6-EP(3x3)

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Si7020-A20 I2C Humidity and Temperature Sensor

The Si7020 I2C Humidity and Temperature Sensor is a monolithic CMOS IC designed for accurate and low-power measurement of humidity, dew-point, and temperature. It integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, and calibration data, all accessible via an I2C interface. The sensor utilizes patented technology with low-K polymeric dielectrics for humidity sensing, ensuring low drift, hysteresis, and excellent long-term stability. Factory-calibrated and stored in on-chip non-volatile memory, the sensors are fully interchangeable without recalibration. Available in a 3x3 mm DFN package, it's a drop-in upgrade for existing sensors, offering precision over a wider range and lower power consumption. An optional factory-installed cover provides protection during assembly and product life. Ideal for applications including HVAC/R, thermostats, respiratory therapy, white goods, indoor weather stations, micro-environments, automotive climate control, asset tracking, and mobile devices.

Product Attributes

Brand: Silicon Laboratories
Model: Si7020-A20
Interface: I2C
Package: 3x3 mm DFN
Optional Cover: Yes (low-profile, hydrophobic/oleophobic, protects against liquids and particulates)
Calibration: Factory-calibrated
Origin: Not specified
Material: Not specified
Color: Not specified
Certifications: Not specified

Technical Specifications

Parameter	Symbol	Test Condition	Min	Typ	Max	Unit
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
Precision Relative Humidity		080% RH	4%			RH (max)
High Accuracy Temperature		10 to 85 C	0.4 C			(max)
Operating Range RH			0		100%	RH
Operating Range Temperature			40		+125	C
Active Current	IDD	RH conversion in progress		150	180	A
Standby Current (40 to +85 C)	IDD	No conversion or I2C transaction		0.06	0.62	A
Standby Current (40 to +125 C)	IDD	No conversion or I2C transaction		0.06	3.8	A
12-bit RH Conversion Time	tCONV			10	12	ms
14-bit Temperature Conversion Time	tCONV			7	10.8	ms
Powerup Time (to ready for conversion, 25 C)	tPU			18	25	ms
SCLK Frequency	fSCL	I2C Interface			400	kHz

2410121916_SILICON-LABS-SI7020-A20-GM1_C430229.pdf

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