www.sensirion.com Sensirion, Eggbühlstr. 14, 8052 Zürich, Switzerland, Tel: +41 1 306 40 00, Fax: +41 1 306 40 30 v2.02
SHT1x / SHT7x
Humidity & Temperature Sensor
- Relative humidity and temperature sensors
- Dew point
- Fully calibrated, digital output
- Excellent long-term stability
- No external components required
- Ultra low power consumption
- Surface mountable or 4-pin fully interchangeable
- Small size
- Automatic
p
ower down
SHT1x / SHT7x Product Summary
The SHTxx is a single chip relative humidity and
temperature multi sensor module comprising a calibrated
digital output. Application of industrial CMOS processes with
patented micro-machining (CMOSens® technology) ensures
highest reliability and excellent long term stability. The
device includes a capacitive polymer sensing element for
relative humidity and a bandgap temperature sensor. Both
are seamlessly coupled to a 14bit analog to digital converter
and a serial interface circuit on the same chip. This results in
superior signal quality, a fast response time and insensitivity
to external disturbances (EMC) at a very competitive price.
Each SHTxx is individually calibrated in a precision humidity
chamber with a chilled mirror hygrometer as reference. The
calibration coefficients are programmed into the OTP
memory. These coefficients are used internally during
measurements to calibrate the signals from the sensors.
The 2-wire serial interface and internal voltage regulation
allows easy and fast system integration. Its tiny size and low
power consumption makes it the ultimate choice for even
the most demanding applications.
The device is supplied in either a surface-mountable LCC
(Leadless Chip Carrier) or as a pluggable 4-pin single-in-line
type package. Customer specific packaging options may be
available on request.
1
Applications
_ HVAC
_ Automotive
_ Consumer Goods
_ Weather Stations
_ Humidifiers
_ Dehumidifiers
VDD
GND
SC
K
DAT
A
Calibration
Memory
%RH
Sensor
Temp.
Sensor
Digital 2-
wire
Interface
&
CRC
generator
A
D
1
4
-
b
i
t
Amplification
Block Diagram
Ordering Information
Part
Number
Humidity
accuracy
[%RH]
Temperature
accuracy [K]
@ 25 °C
Package
SHT11
±3.0 ±0.4
SMD (LCC)
SHT15
±2.0 ±0.3
SMD (LCC)
SHT71
±3.0 ±0.4
4-pin single-in-line
SHT75
±1.8 ±0.3
4-pin single-in-line
_ Test & Measurement
_ Data Logging
_ Automation
_ White Goods
_ Medical
Evaluation Kit
Available
SHT7x
SHT1x
查询SHT11供应商
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