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Si7013 Datasheet

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

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Si7013
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 35.
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. 0.95 11/13
Copyright © 2013 by Silicon Laboratories
Si7013
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
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Silicon Laboratories

Si7013 Datasheet Preview

Si7013 Datasheet

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

No Preview Available !

Si7013
Functional Block Diagram
Si7013
Humidity
Sensor
VINP
VINN
Temp
Sensor
Analog
Input
VSNS
Vdd
1.25V
Ref
ADC
Calibration
Memory
Control Logic
I2C Interface
GND
AD0/VOUT
SDA
SCL
2 Rev. 0.95
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Part Number Si7013
Description I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR
Maker Silicon Laboratories
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