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SI7005-B-FM データシート(PDF) 1 Page - Silicon Laboratories

部品番号 SI7005-B-FM
部品情報  DIGITAL I2C HUMIDITY AND TEMPERATURE SENSOR
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メーカー  SILABS [Silicon Laboratories]
ホームページ  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI7005-B-FM データシート(HTML) 1 Page - Silicon Laboratories

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Rev. 1.2 1/14
Copyright © 2014 by Silicon Laboratories
Si7005
Si7005
D IGITAL I 2C H UMIDITY AND TEMPERATURE S ENSOR
Features
Applications
Description
The Si7005 is a digital relative humidity and temperature sensor. This
monolithic CMOS IC integrates temperature and humidity sensor
elements, an analog-to-digital converter, signal processing, calibration
data, and an I2C host interface. The patented use of industry-standard,
low-K polymeric dielectrics for sensing humidity enables the construction
of a low-power, monolithic CMOS sensor IC with low drift and hysteresis
and excellent long term stability.
Both the temperature and humidity 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.
The Si7005 is packaged in a 4x4 mm QFN package and is reflow
solderable. The optional factory-installed protective 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 Si7005 offers an accurate, low-power, factory-calibrated digital
solution ideal for measuring temperature, humidity, and dew-point in
applications ranging from HVAC/R and asset tracking to industrial and
consumer platforms.
Relative Humidity Sensor

± 4.5 % RH (maximum @ 0–80% RH)
Temperature Sensor

±0.5 ºC accuracy (typical)

±1 ºC accuracy (maximum @ 0 to 70 °C)
0 to 100% RH operating range
–40 to +85 °C (GM) or 0 to +70 °C
operating range (FM)
Wide operating voltage range
(2.1 to 3.6 V)
Low Power Consumption

240 µA during RH conversion
I2C host interface
Integrated on-chip heater
4x4 mm QFN package
Excellent long term stability
Factory calibrated
Optional factory-installed
cover

Low-profile

Protection during reflow

Excludes liquids and
particulates
(hydrophobic/oleophobic)
Industrial HVAC/R
Thermostats/humidistats
Respiratory therapy
White goods
Micro-environments/data centers
Automotive climate control and
de-fogging
Asset and goods tracking
Patent protected; patents pending
Ordering Information
See Ordering Guide.
Pin Assignments
1
6
5
4
3
2
18
13
14
15
16
17
GND
DNC
DNC
SDA
SCL
DNC
DNC
DNC
CS
DNC
DNC
DNC


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