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SI7013-A10

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Silicon Laboratories 

Si7013-A10

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Features

 Precision Relative Humidity Sensor  Factory-calibrated

 ± 3% RH (max), 0–80% RH

 I2C Interface

 High Accuracy Temperature Sensor  Integrated on-chip heater

±0.4 °C (max), –10 to 85 °C

 Auxiliary Sensor input

 0 to 100% RH operating range

Direct readout of remote

 Up to –40 to +125 °C operating

thermistor temperature in °C

range

 Package: 3x3 mm DFN

 Low Voltage Operation (1.9 to 3.6 V)  Excellent long term stability

 Low Power Consumption

 Optional factory-installed cover

150 µA active current

Low-profile

60 nA standby current

Protection during reflow

Excludes liquids and particulates

Applications

 HVAC/R

 Thermostats/humidistats

 Instrumentation

 White goods

 Micro-environments/data centers

 Industrial Controls

 Indoor weather stations

Description

The Si7013 I2C Humidity and 2-Zone Temperature Sensor is a monolithic CMOS

IC integrating humidity and temperature sensor elements, an analog-to-digital

converter, signal processing, calibration data, and an I2C Interface. The patented

use of industry-standard, low-K polymeric dielectrics for sensing humidity enables

the construction of low-power, monolithic CMOS Sensor ICs with low drift and

hysteresis, and excellent long term stability.

The humidity and temperature sensors are factory-calibrated and the calibration

data is stored in the on-chip non-volatile memory. This ensures that the sensors

are fully interchangeable, with no recalibration or software changes required.

An auxiliary sensor input with power management can be tied directly to an

external thermistor network or other voltage-output sensor. On-board logic

performs calibration/linearization of the external input using user-programmable

coefficients. The least-significant bit of the Si7013's I2C address is programmable,

allowing two devices to share the same bus.

The Si7013 is available in a 3x3 mm DFN package and is reflow solderable. The

optional factory-installed cover offers a low profile, convenient means of protecting

the sensor during assembly (e.g., reflow soldering) and throughout the life of the

product, excluding liquids (hydrophobic/oleophobic) and particulates.

The Si7013 offers an accurate, low-power, factory-calibrated digital solution ideal

for measuring humidity, dew-point, and temperature, in applications ranging from

HVAC/R and asset tracking to industrial and consumer platforms.

Si7013

Ordering Information:

See page 38.

Pin Assignments

Top View

SDA 1

AD0/VOUT 2

GNDD 3

GNDA 4

VSNS 5

10 SCL

9 VDDD

8 VDDA

7 VINN

6 VINP

Patent Protected. Patents pending

Rev. 1.0 5/14

Copyright © 2014 by Silicon Laboratories

Si7013-A10

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

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