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Home » NEWEST Products » New by Manufacturer » Silicon Labs » Si70xx Relative Humidity & Temperature Sensors - Silicon Labs
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Silicon Labs

Silicon Labs Si70xx Relative Humidity & Temperature Sensors

Silicon Labs' Si70xx Relative Humidity & Temperature Sensors utilize proven techniques for measuring humidity using polymer dielectric film along with CMOS mixed signal integrated circuits. These monolithic ICs combine fully calibrated humidity and temperature sensing elements, an I2C interface and on-chip signal conditioning into a compact, rugged and reliable package. The 1st Generation Relative Humidity and Temperature Sensors include the Si7015 which is a digital relative humidity and temperature sensor that integrates humidity and temperature sensor elements, an analog-to-digital converter and signal processing in a single monolithic CMOS sensor IC. The 2nd Generation includes the Si701x/2x devices that combine fully factory-calibrated humidity and temperature sensor elements with an analog-to-digital converter, signal processing and an I2C host interface.

Silicon Labs Si7015 Digital Relative Humidity & Temperature Sensor

Silicon Labs' Si7015 Digital Relative Humidity & Temperature Sensor integrates humidity and temperature sensor elements, an analog-to-digital converter and signal processing in a single monolithic CMOS sensor IC. Both the humidity and temperature sensors are factory-calibrated and the calibration data is stored in on-chip non-volatile memory. The Si7015 supports a fully-compliant I2C interface for easy connection to host MCUs. The Si7015 humidity and temperature sensor is packaged in a 4 mm x 4 mm QFN package, is reflow solderable and is pin-pin compatible with the Si7005.

Features
  • Relative Humidity Sensor:
    • ± 4.5% RH (maximum @ 20-80% RH)
  • Temperature Sensor:
    • ±0.5ºC accuracy (typical)
    • ±1ºC accuracy (maximum @ 0 to 70°C)
  • 0 to 100% RH operating range
  • Up to -40 to +85ºC operating range
  • Wide operating voltage range (2.1 to 3.6V)
  • Low Power Consumption: 240 μA during RH conversion
  • I2C host interface
  • Integrated on-chip heater
  • 4mm x 4mm QFN package
  • Excellent long term stability
  • Factory calibrated
  • Optional factory-installed filter/cover
    • Low-profile
    • Protection during reflow
    • Excludes liquids and particulates (hydrophobic/oleophobic)
Applications
  • Asset and goods tracking
  • Automotive climate control and de-fogging
  • Baby monitor
  • Continuous positive airway pressure (CPAP) machine
  • Flood and water detector
  • Gas, fire and smoke detector
  • Handset/smart phone
  • Industrial HVAC/R
  • Laptop/tablet
  • Laser printer
  • Micro-environments/data centers
  • PLC and IO modules
  • Remote telemetry units
  • Tablet
  • Test and measurement
  • Thermostats/humidistats
  • Ventilating and air conditioning systems
  • Weather station
  • Wind power inverter
  • Windshield and rearview mirror systems
  • Wireless base stations
  • Wireless sensor networks
Block Diagram
Si7015 Block Diagram

Silicon Labs Si701x/2x Relative Humidity & Temperature Sensors

Silicon Labs' Si701x/2x Relative Humidity & Temperature Sensors combine fully factory-calibrated humidity and temperature sensor elements with an analog-to-digital converter, signal processing and an I2C host interface. Patented use of industry-standard low-K polymer dielectrics provides excellent accuracy and long term stability, along with low drift and low hysteresis. The innovative CMOS design also offers the lowest power consumption in the industry for a relative humidity and temperature sensor. Designers will appreciate the unique set of features offered by the Si701x/2x family. With full factory calibration, Si701x/2x devices require no additional RH/temperature calibration during PCB assembly. For protection against dust, dirt and chemical contaminants during PCB reflow and during device operation, all members of the Si701x/2x family can be fitted with an optional factory-installed cover. In addition, designs that require 2-zone temperature sensing will benefit from the Si7013's auxiliary sensor input with programmable linearization.

Silicon Labs Si7013/Si702x Relative Humidity & Temperature Sensors
Order Silicon Labs Si701x/2x Relative Humidity & Temperature Sensors View Product List

ACE Award Winner 2014
Features
  • Precision Relative Humidity Sensor:
    • Si7013/21: ± 3% RH (maximum) @ 0-80% RH
    • Si7020: ± 4% RH (maximum) @ 0-80% RH
  • Temperature Sensor:
    • ±0.4°C accuracy (maximum) @ -10 to +85°C
  • 0 to 100% RH operating range
  • Up to -40 to +125°C operating range
  • Wide operating voltage range (1.9 to 3.6 V)
  • Low Power Consumption: 1.9µW average power at 3.3V and 1 sample per second
  • I2C host interface
  • Integrated on-chip heater
  • 3mm x 3mm DFN package
  • Excellent long term stability
  • Factory calibrated
  • Optional factory-installed filter/cover
    • Lifetime protection during reflow and in operation
    • Protects against contamination from dust, dirt, household chemicals and other liquids
  • AEC-Q100 automotive qualified

Applications
  • Asset and goods tracking
  • Automotive climate control and de-fogging
  • Baby monitor
  • Continuous positive airway pressure (CPAP) machine
  • Flood and water detector
  • Gas, fire and smoke detector
  • Handset/smart phone
  • Industrial HVAC/R
  • Laptop/tablet
  • Laser printer
  • Micro-environments/data centers
  • PLC and IO modules
  • Remote telemetry units
  • Tablet
  • Test and measurement
  • Thermostats/humidistats
  • Ventilating and air conditioning systems
  • Weather station
  • Wind power inverter
  • Windshield and rearview mirror systems
  • Wireless base stations
  • Wireless sensor networks

Block Diagram
Si7013/Si702x Block Diagram

Si7013EVB-UDP Unified Development Platform

Silicon Labs' Si7013EVB-UDP Unified Development Platform is a small daughter card that permits evaluation of the Si701x/2x family in conjunction with certain Unified Development Platform (UDP) components such as the C8051F960 Ultra-Low Power Microcontroller Development Kit (C8051F960-A-DK). The daughter card is designed to plug directly into UDP MCU cards for fast prototyping and software development. In addition to an on-board Si7013, there is a connector for adding a Si7013, Si7020 or Si7021 "postage stamp" daughter card via its flex cable, allowing the customer to place the sensor in a temperature/humidity chamber or a product prototype. The Si701x/2x postage stamp daughter cards are included in the Si7013USB-DONGLE kit (ordered separately).


Additional Resources
User's Guide User's Guide
Application Note: Humidity Sensors Designer's Guide Application Note: Humidity Sensors Designer's Guide

Silicon Labs Si7013EVB-UDP Unified Development Platform
Order Silicon Labs Si7013EVB-UDP Unified Development Platform View Product Detail

Si7013EVB-UDP-F960 Ultra-Low Power Development Kit

Silicon Labs' Si7013EVB-UDP-F960 Ultra-Low Power Development Kit is part of the Unified Development Platform (UDP) and combines the C8051F960 Ultra-Low Power Microcontroller Development Kit (C8051F960-A-DK) and the Si7013EVB-UDP humidity sensor daughter card with data logger demonstration code. It is a complete package designed to support hardware and software development using the Si7013 and Silicon Lab's ultra-low power MCUs. It can also serve as a portable demonstration vehicle for the Si7013 (no PC required).


Additional Resources
Quick Start Guide Quick Start Guide
User's Guide User's Guide
Application Note: Humidity Sensors Designer's Guide Application Note: Humidity Sensors Designer's Guide
Silicon Labs Si7013EVB-UDP-F960 Ultra-Low Power Development Kit
Order Silicon Labs Si7013EVB-UDP-F960 Ultra-Low Power Development Kit View Product Detail

Si7013EVB-UDP-M3L1 Development Kit

Silicon Labs' Si7013EVB-UDP-M3L1 Development Kit is part of the Unified Development Platform (UDP) and combines the SiM3L1xxLCD-B-DK 32-bit Ultra-Low Power Microcontroller Development Kit and the Si7013EVB-UDP humidity sensor daughter card with data logger demonstration code. It is a complete package designed to support hardware and software development using the Si7013 and Silicon Labs' ultra-low power 32-bit MCUs. It can also serve as a portable demonstration vehicle for the Si7013 (no PC required).


Additional Resources
User's Guide User's Guide
Application Note: Humidity Sensors Designer's Guide Application Note: Humidity Sensors Designer's Guide
Silicon Labs Si7013EVB-UDP-M3L1 Development Kit
Order Silicon Labs Si7013EVB-UDP-M3L1 Development Kit View Product Detail
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