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SHT20P Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part No. SHT20P
Description  DFN type package reflow solderable
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Maker  ETC2 [List of Unclassifed Manufacturers]
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SHT20P Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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www.sensirion.com
Version 4 – May 2014
2/10
Sensor Performance
Relative Humidity123
Parameter
Condition
Value
Units
Resolution
12 bit
0.04
%RH
Accuracy
tolerance 1
typ
3.0
%RH
max
see Figure 2
%RH
Repeatability
0.1
%RH
Hysteresis
1
%RH
Nonlinearity
<0.1
%RH
Response time 2
 63%
8
s
Operating Range extended 3
0 to 100
%RH
Long Term Drift 4
Typ.
< 0.25
%RH/yr
Figure 2 Typical and maximal tolerance at 25°C for relative
humidity. For extensive information see Users Guide, Sect. 1.2.
Electrical Specification
Parameter
Condition
min
typ
max Units
Supply Voltage, VDD
2.1
3.0
3.6
V
Supply Current, IDD 5
180
µA
Power Dissipation 5
0.54
mW
PWM frequency
40 °C
108
120
132
Hz
Temperature drift of
PWM frequency
-0.07
-0.12 Hz/°C
Measurement
Frequency
2
Hz
Switch RH/T on SDA SCL up  RH; SCL down  T
Table 1
Electrical specification. For absolute maximum
values see Chapter 4.1 of Users Guide.
1 Accuracies are tested at Outgoing Quality Control at 25°C and 3.0V. Values
exclude hysteresis and long term drift and are applicable to non-condensing
environments only.
2 Time for achieving 63% of a step function, valid at 25°C and 1 m/s airflow.
3 Normal operating range: 0-80%RH, beyond this limit sensor may read a
reversible offset with slow kinetics (+3%RH after 60h at humidity >80%RH). For
more details please see Section 1.1 of the Users Guide.
Temperature456
Parameter
Condition
Value
Units
Resolution
14 bit
0.01
°C
Accuracy
tolerance 1
typ
0.3
°C
max
see Figure 3
°C
Repeatability
0.1
°C
Operating Range extended 3
-40 to 125
°C
Response Time 6
 63%
5 to 30
s
Long Term Drift 7
Typ.
< 0.02
°C/yr
Figure 3 Typical and maximal temperature accuracy tolerance
Packaging Information
Sensor Type
Packaging
Quantity
Order Number
SHT20P
Tape & Reel
1500
1-100745-01
Tape & Reel
5000
1-100746-01
This datasheet is subject to change and may be amended
without prior notice.
4 Typical value for operation in normal RH/T operating range. Max. value is < 0.5
%RH/y. Value may be higher in environments with vaporized solvents, out-
gassing tapes, adhesives, packaging materials, etc. For more details please
refer to Handling Instructions.
5 Values of Supply Current and Power Dissipation are based upon fixed VDD =
3.0V and T = 25°C.
6 Response time depends on heat conductivity of sensor substrate.
7 Max. value is < 0.04°C/y.
± 0
± 2
± 4
± 6
± 8
± 10
0
10
20
30
40
50
60
70
80
90 100
ΔRH (%RH
)
Relative Humidity (%RH)
maximum accuracy
typical accuracy
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40
-20
0
20
40
60
80
100
120
ΔT (
C)
Temperature (°C)
maximum accuracy
typical accuracy


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