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SHT31-ARP 데이터시트 PDF




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부품번호 SHT31-ARP 기능
기능 Humidity and Temperature Sensor
제조업체 Sensirion
로고 Sensirion 로고


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SHT31-ARP 데이터시트, 핀배열, 회로
Datasheet SHT3x-ARP
Humidity and Temperature Sensor
Fully calibrated, linearized, and temperature
compensated analog output
Wide supply voltage range, from 2.4 to 5.5 V
10 to 90% ratiometric analog voltage output
Typical accuracy of 2%RH and 0.3°C
Parallel measurement of temperature and humidity
at separate pins
Tiny 8-Pin DFN package
Product Summary
SHT3x-ARP is the next generation of Sensirion’s
temperature and humidity sensors. It builds on a new
CMOSens® sensor chip that is at the heart of Sensirion’s
new humidity and temperature platform. The SHT3x-
ARP has increased intelligence, reliability and improved
accuracy specifications compared to its predecessor. Its
functionality includes enhanced signal processing,
temperature and humidity can be read out at different
pins. The DFN package has a footprint of 2.5 x 2.5 mm
while keeping a height of 0.9 mm. This allows for
integration of the SHT3x-ARP into a great variety of
applications. Additionally, the wide supply voltage range
of 2.4 to 5.5 V guarantees compatibility with diverse
assembly situations. All in all, the SHT3x-ARP
incorporates 15 years of knowledge of Sensirion, the
leader in the humidity sensor industry.
Benefits of Sensirion’s CMOSens® Technology
High reliability and long-term stability
Industry-proven technology with a track record of
more than 15 years
Designed for mass production
High process capability
Low signal noise
Content
1 Sensor Performance.............................................2
2 Specifications .......................................................4
3 Pin Assignment ....................................................6
4 Operation and Communication.............................6
5 Packaging.............................................................8
6 Shipping Package ..............................................10
7 Quality ................................................................11
8 Ordering Information...........................................11
9 Further Information.............................................11
Figure 1 Functional block diagram of the SHT3x-ARP. The
sensor signals for humidity and temperature are factory
calibrated, linearized and compensated for temperature
and supply voltage dependencies.
www.sensirion.com
May 2015 - Version 0.93
1/13




SHT31-ARP pdf, 반도체, 판매, 대치품
Datasheet SHT3x-ARP
1.2 Temperature Sensor Performance
Parameter
Accuracy tolerance1
Repeatability2
Resolution
Specified Range
Response time 8
Long Term Drift
Sensitivity
Condition
Typ. 10 to +55
Typ.
-
63%
max.
VDD=2.4V
VDD=3.3V
VDD=5.5V
Value
0.3
0.1
14
-40 to 125
>2
<0.03
11.6
16
26.7
Units
°C
°C
bit
°C
s
°C/yr
mV/°C
mV/°C
mV/°C
Table 2 Temperature sensor specification; values are target specs and not
confirmed by measurements yet
±2D.0T (°C)
±1.5
maximal tolerance
typical tolerance
±1.0
±0.5
±0.0
-40 -20 0 20 40 60 80 100 120
SHT30/SHT31
Temperature (°C)
Figure 6 Tolerance of the temperature sensor in °C for the SHT30 and SHT31
1.3 Recommended Operating Condition
The sensor shows best performance when operated within recommended normal temperature and humidity range of 5
60 °C and 20 80 %RH, respectively. Long term exposure to conditions outside normal range, especially at high humidity,
may temporarily offset the RH signal (e.g.+3%RH after 60h at >80%RH). After returning into the normal temperature and
humidity range the sensor will slowly come back to calibration state by itself. Prolonged exposure to extreme conditions
may accelerate ageing. To ensure stable operation of the humidity sensor, the conditions described in the document
“SHTxx Assembly of SMD Packages”, section “Storage and Handling Instructions” regarding exposure to volatile organic
compounds have to be met. Please note as well that this does apply not only to transportation and manufacturing, but also
to operation of the SHT3x-ARP.
2 Specifications
2.1 Electrical Specifications
Parameter
Supply voltage
Power-up/down level
Symbol
VDD
VPOR
Condition
Min Typ.
2.4 3.3
2.2 2.28
Max Units Comments
5.5 V
2.35 V
8 Temperature response times strongly depends on the design-in of the sensor in the final application. Minimal response time can be achieved when the thermalized
sensor at T1 is placed on a well conducting surface with temperature T2.
www.sensirion.com
May 2015 - Version 0.93
4/13

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SHT31-ARP 전자부품, 판매, 대치품
Datasheet SHT3x-ARP
100
90
80
70
60
50
40
30
20
10
0
0%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Voltage out (VRH/VDD)
Figure 8 Relationship between the ratiometric analog voltage output and the measured relative humidity
RH
12.5
125
VRH
VDD
10
0.8
100
0.8
VRH
VDD
Equation 1 Relative humidity conversion formula (result in %RH):
115
95
75
55
35
15
-5
-25
-45
0%
251
201
151
101
51
1
-49
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Voltage out (VT/VDD)
Figure 9 Relationship between the ratiometric analog voltage output and the measured temperature
T
C
66.
875
218.75
VT
VDD
45
17.5
0.8
175
0.8
VT
VDD
T
F
88.375
393.75
VT
VDD
49
31.5
0.8
315
0.8
VT
VDD
Equation 2 Temperature conversion formula (result in °C and °F respectively)
www.sensirion.com
May 2015 - Version 0.93
7/13

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관련 데이터시트

부품번호상세설명 및 기능제조사
SHT31-ARP

Humidity and Temperature Sensor

Sensirion
Sensirion

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