Engineering for a mixed-signal world.
www.silabs.com/humidity-sensor
Humidity and Temperature Sensors
SENSOR SOLUTIONS
MORE INFORMATION AND DOCUMENTATION DOWNLOADS AT: www.silabs.com/humidity-sensor
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
• Auxiliary 2nd zone sensor input (Si7013)
• 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:
• 1.9 µW average power at 3.3 V and 1 sample
per second
• I2C host interface
• Integrated on-chip heater
• 3 mm x 3 mm DFN package
• Excellent long term stability
• Factory calibrated
• Optional factory-installed lter/cover
• Lifetime protection during reow and
in operation
• Protects against contamination from dust, dirt,
household chemicals and other liquids
• AEC-Q100 automotive qualied
APPLICATIONS
• Industrial HVAC/R
• Thermostats/humidistats
• Respiratory therapy
• White goods
• Micro-environments/data centers
• Automotive climate control and de-fogging
• Asset and goods tracking
LOWEST POWER INTEGRATED RH SENSOR
DIGITAL I2C HUMIDITY AND TEMPERATURE SENSORS
The Si701x/2x devices are Silicon Labs’ 2nd generation family of relative humidity and
temperature sensors. All members of this device family 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.
Si7020/21
Humidity
Sensor
Temperature
Sensor
ADC
1.25 V
Ref
Control Logic
Calibration
Memory
I2C Interface
Vdd
GND
SDA
SCL
Si7013
Humidity
Sensor
Temperature
Sensor
ADC
1.25 V
Ref
I2C Interface
VSNS
GND
SDA
SCL
Analog
Input
VINP
VINN
Vdd
SDA
Control Logic
Calibration
Memory
The simpler, greener way to measure relative humidity
Engineering for a mixed-signal world.
© 2013, Silicon Laboratories Inc. Silicon Laboratories and the Silicon Labs logo are trademarks or registered trademarks of Silicon
Laboratories Inc. ARM and Cortex-M3 are trademarks or registered trademarks of ARM Holdings. All other product or service names
are the property of their respective owners. For the most up to date information please see your sales representative or visit our
website at www.silabs.com. WEB December 2013, Rev B SOL-RHT
www.silabs.com/humidity-sensor
Humidity and Temperature Sensors
XX%
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Si70xx Development Tools
The Si70xx is supported by a suite of hardware and software development tools that facilitate testing/characterization, prototyping and software
development.
The Si7013USB-DONGLE Evaluation Kit comes with everything developers need to demonstrate and evaluate the Si7013. The board plugs into
a PC via a USB socket. It has a connector for adding the Si7013/20/21-EB Daughter Cards.
The Si7013, Si7020 and Si7021-EB (included with the Si7013USB-DONGLE) are three small daughter cards that permit evaluation of the Si70xx
at the end of a ex cable. They plug right in to the USB-DONGLE if the user wants to put a sensor in a temperature/humidity chamber or a
product prototype.
The Si7013EVB-UDP is a small daughter card that permits evaluation of the Si7013 in conjunction with certain Unied Development Platform
(UDP) components such as the C8051F960 8-bit and the SiM3L1xx LCD 32-bit Ultra-Low Power Microcontroller Development Kits. It plugs
directly into UDP MCU cards for fast prototyping and software development. In addition to an on-board Si7013, there is a connector for adding
an Si7013/20/21-EB via its ex cable, allowing the user to place the Si7013 in a temperature/humidity chamber or a product prototype.
The Si7005EVB-UDP-F960 Development Kit and Si7013EVB-UDP-M3L1 Development Kit combines the 8-bit or 32-bit Ultra-Low Power
Microcontroller Development Kits and the Si7013EVB-UDP 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 ships with example
software that implements a portable, battery-powered data logger/asset tracker.
Digital I2C Relative Humidity and Temperature Sensors
PART NUMBER DESCRIPTION MAX ACCURACY
TEMP. RH
TEMP.
RANGE
FILTER
COVER
PACKAGE
FORMAT PACKAGE
Si7013-A10-GM Digital I2C RH and 2-zone temperature sensor IC ±0.4 °C ±3% –40 to 85 ºC Tube DFN10
Si7013-A10-GM1R Digital I2C RH and 2-zone temperature sensor IC with pre-installed protective cover ±0.4 °C ±3% –40 to 85 ºC • Cut Tape DFN10
Si7013-A10-IM Digital I2C RH and 2-zone temperature sensor IC ±0.4 °C ±3% –40 to 125 ºC Tube DFN10
Si7013-A10-IM1R Digital I2C RH and 2-zone temperature sensor IC with pre-installed protective cover ±0.4 °C ±3% –40 to 125 ºC • Cut Tape DFN10
Si7020-A10-GM Digital I2C RH and temperature sensor IC ±0.4 °C ±4% –40 to 85 ºC Tube DFN6
Si7020-A10-GM1R Digital I2C RH and temperature sensor IC with pre-installed protective cover ±0.4 °C ±4% –40 to 85 ºC • Cut Tape DFN6
Si7020-A10-IM Digital I2C RH and temperature sensor IC ±0.4 °C ±4% –40 to 125 ºC Tube DFN6
Si7020-A10-IM1R Digital I2C RH and temperature sensor IC with pre-installed protective cover ±0.4 °C ±4% –40 to 125 ºC • Cut Tape DFN6
Si7021-A10-GM Digital I2C RH and temperature sensor IC ±0.4 °C ±3% –40 to 85 ºC Tube DFN6
Si7021-A10-GM1R Digital I2C RH and temperature sensor IC with pre-installed protective cover ±0.4 °C ±3% –40 to 85 ºC • Cut Tape DFN6
Si7021-A10-IM Digital I2C RH and temperature sensor IC ±0.4 °C ±3% –40 to 125 ºC Tube DFN6
Si7021-A10-IM1R Digital I2C RH and temperature sensor IC with pre-installed protective cover ±0.4 °C ±3% –40 to 125 ºC • Cut Tape DFN6
Si7013
USB DONGLE
Si7013/C8051F960 OR SiM3L1xx
UDP EVALUATION KIT
Si7013 UDP
DAUGHTER CARD
Si7013/20/21-EB
DAUGHTER CARDS
SENSOR SOLUTIONS
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Silicon Laboratories:
Si7020-A10-GM SI7020-A10-GM