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Si7022-A20-IM1R

Si7022-A20-IM1R - Humidity Sensor

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Manufacturer Part：

Si7022-A20-IM1R

Package：

DFN-6 (3x3mm)

Brand：

Silicon Labs

Product Categories：

Integrated Circuits ICs

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Description

Product Overview

The Si7022-A20-IM1R from Silicon Labs is a calibrated relative humidity and temperature sensor with I2C interface. Factory-calibrated with +/-3% RH accuracy. 12-bit humidity and 14-bit temperature resolution. Ultra-low 60nA standby current for battery-operated IoT devices. DFN-6 package.

Key Specifications

Type	Relative Humidity and Temperature Sensor
Humidity Range	0 to 100% RH
Humidity Accuracy	+/-3% RH (0-80%)
Temperature Range	-10 to +85C
Temperature Accuracy	+/-0.4C
Resolution	12-bit RH, 14-bit temp
Interface	I2C (up to 400 kHz)
Supply Voltage	1.9V to 3.6V
Current	150uA active, 60nA standby
Package	DFN-6 (3x3mm)

Working Principle

The Si7022 uses a capacitive sensing element with a polymer dielectric that absorbs or desorbs water molecules proportional to ambient RH. An on-chip sigma-delta ADC converts the capacitance change to a digital humidity value. A separate bandgap temperature sensor provides compensated temperature readings. Factory calibration constants stored in on-chip OTP memory ensure +/-3% RH accuracy without user calibration. I2C interface provides digital output.

Applications

IoT weather stations
HVAC monitoring
Smart home sensors
Industrial RH monitoring

Product Introduction:Si7022-A20-IM1R Product Introduction

The Si7022-A20-IM1R from Silicon Labs is a calibrated relative humidity and temperature sensor with I2C interface. Factory-calibrated with +/-3% RH accuracy. 12-bit humidity and 14-bit temperature resolution. Ultra-low 60nA standby current for battery-operated IoT devices. DFN-6 package.

Working Principle:Si7022-A20-IM1R Working Principle

The Si7022 uses a capacitive sensing element with a polymer dielectric that absorbs or desorbs water molecules proportional to ambient RH. An on-chip sigma-delta ADC converts the capacitance change to a digital humidity value. A separate bandgap temperature sensor provides compensated temperature readings. Factory calibration constants stored in on-chip OTP memory ensure +/-3% RH accuracy without user calibration. I2C interface provides digital output.

Pin Description:Si7022-A20-IM1R Pin Definition and Functions

Pin	Name	Desc
1	SDA	I2C data
2	GND	Ground
3	VDD	Supply (1.9-3.6V)
4	SCL	I2C clock

Application Scenarios:In which products and applications isSi7022-A20-IM1R used

IoT weather stations
HVAC monitoring
Smart home sensors
Industrial RH monitoring

Alternative Models:What chips are recommended as replacements for Si7022-A20-IM1R

Model	Vendor	Diff
SHT30-DIS-B	Sensirion	+/-2% RH
HDC1080	TI	+/-2% RH

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Quality Assurance

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Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China