www.sensirion.com September 2018 - Version 3 1/15
Datasheet SHT3x-ARP
Humidity and Temperature Sensor IC
Fully calibrated, linearized, and temperature
compensated analog output
Wide supply voltage range, from 2.4 V 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. 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 mm2 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 V 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
High signal-to-noise ratio
Content
1 Sensor Performance............................................. 2
2 Specifications ....................................................... 5
3 Pin Assignment .................................................... 7
4 Operation and Communication ............................. 8
5 Packaging ........................................................... 10
6 Shipping Package .............................................. 12
7 Quality ................................................................ 12
8 Ordering Information........................................... 13
9 Further Information ............................................. 13
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.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 2/15
1 Sensor Performance
Humidity Sensor Specification
Parameter
Conditions
Value
Units
SHT30 Accuracy tolerance1
Typ.
3
%RH
Max.
Figure 2
-
SHT31 Accuracy tolerance1
Typ.
2
%RH
Max.
Figure 3
-
Repeatability2
0.1
%RH
Resolution
Typ.
0.01
%RH
Integrated Non-Linearity3
Typ.
0.2
%RH
Hysteresis
at 25°C
0.8
%RH
Specified range4
extended5
0 to 100
%RH
Response time6
63%
8
s
Long-term drift
Typ.7
<0.25
%RH/yr
Sensitivity
VDD=2.4 V
19.2
mV/%RH
VDD=3.3V
26.4
mV/%RH
VDD=5.0V
40.0
mV/%RH
VDD=5.5V
44.0
mV/%RH
Table 1 Humidity sensor specification
Temperature Sensor Specification
Parameter
Condition
Value
Units
SHT30 Accuracy tolerance1
Typ., 0°C to 65°C
0.3
°C
SHT31 Accuracy tolerance1
Typ., 0°C to 90°C
0.3
°C
Repeatability2
0.06
°C
Resolution
Typ.
0.01
°C
Specified Range
-
-40 to 125
°C
Response time8
63%
>2
s
Long Term Drift
Max.
<0.03
°C/yr
Sensitivity
VDD=2.4 V
11.0
mV/°C
VDD=3.3V
15.1
mV/°C
VDD=5.0V
22.9
mV/°C
VDD=5.5V
25.1
mV/°C
Table 2 Temperature sensor specification
1
For definition of typical and maximum accuracy tolerance, please refer to the document “Sensirion Humidity Sensor Specification Statement”.
2
The stated repeatability is 3 times the standard deviation (3σ) of multiple consecutive measurements at constant ambient conditions. It is a measure for the noise on
the physical sensor output. It is measured with analog circuit and integrated over 1 second.
3
Maximum deviation from the ideal shape (linear curve)
4
Specified range refers to the range for which the humidity or temperature sensor specification is guaranteed.
5
For details about recommended humidity and temperature operating range, please refer to section 1.1.
6
Time for achieving 63% of a humidity step function, valid at 25°C and 1m/s airflow. Humidity response time in the application depends on the design-in of the sensor.
7
Typical value for operation in normal RH/T operating range, see section 1.1. Maximum value is < 0.5 %RH/yr. Value may be higher in environments with vaporized
solvents, out-gassing tapes, adhesives, packaging materials, etc. For more details please refer to Handling Instructions.
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.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 3/15
Humidity Sensor Performance Graphs
SHT30
SHT31
Figure 2 Tolerance of RH at 25°C for SHT30
Figure 3 Tolerance of RH at 25°C for SHT31
SHT30
SHT31
RH (%RH)
100
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
90
±3
±3
±3
±3
±3
±3
±3
±3
±3
80
±3
±3
±3
±3
±3
±3
±3
±3
±3
70
±3
±3
±3
±3
±3
±3
±3
±3
±3
60
±3
±3
±3
±3
±3
±3
±3
±3
±3
50
±3
±3
±3
±3
±3
±3
±3
±3
±3
40
±3
±3
±3
±3
±3
±3
±3
±3
±3
30
±3
±3
±3
±3
±3
±3
±3
±3
±3
20
±3
±3
±3
±3
±3
±3
±3
±3
±3
10
±3
±3
±3
±3
±3
±3
±3
±3
±3
0
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
±4.5
0
10
20
30
40
50
60
70
80
Temperature (°C)
RH (%RH)
100
±2
±2
±2
±2
±2
±2
±2
±2
±2
90
±2
±2
±2
±2
±2
±2
±2
±2
±2
80
±2
±2
±2
±2
±2
±2
±2
±2
±2
70
±2
±2
±2
±2
±2
±2
±2
±2
±2
60
±2
±2
±2
±2
±2
±2
±2
±2
±2
50
±2
±2
±2
±2
±2
±2
±2
±2
±2
40
±2
±2
±2
±2
±2
±2
±2
±2
±2
30
±2
±2
±2
±2
±2
±2
±2
±2
±2
20
±2
±2
±2
±2
±2
±2
±2
±2
±2
10
±2
±2
±2
±2
±2
±2
±2
±2
±2
0
±2
±2
±2
±2
±2
±2
±2
±2
±2
0
10
20
30
40
50
60
70
80
Temperature (°C)
Figure 4 Typical tolerance of RH over T for SHT30
Figure 5 Typical tolerance of RH over T for SHT31
±0
±2
±4
±6
±8
010 20 30 40 50 60 70 80 90 100
Relative Humidity (%RH)
SHT30
maximal tolerance
typical tolerance
DRH (%RH)
±0
±2
±4
±6
±8
010 20 30 40 50 60 70 80 90 100
Relative Humidity (%RH)
SHT31
maximal tolerance
typical tolerance
DRH (%RH)
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 4/15
Temperature Sensor Performance Graphs
SHT30
SHT31
Figure 6 Temperature accuracy of the SHT30 sensor at
VDD = 4.5V…5.5V.
Figure 7 Temperature accuracy of the SHT31 sensor at
VDD = 4.5V…5.5V.
1.1 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_STSxx 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.
±0.0
±0.5
±1.0
±1.5
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
maximal tolerance
typical tolerance
DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)
±0.0
±0.5
±1.0
±1.5
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
maximal tolerance
typical tolerance
DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)DT (°C)
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 5/15
2 Specifications
2.1 Electrical Specifications
Parameter
Symbol
Condition
Min
Typ.
Max
Units
Comments
Supply voltage
VDD
2.4
3.3
5.5
V
Power-up/down level
VPOR
1.8
2.3
2.4
V
Slew rate change of the
supply voltage
VDD,slew
-
-
20
V/ms
Voltage changes on the
VDD line between
VDD,min and VDD,max
should be slower than
the maximum slew rate;
faster slew rates may
lead to reset
Supply current
IDD
Average at T=25°C
-
220
300
A
At resistive load 1MOhm
Average at
T=125°C
-
270
-
A
Resistive load to VSS
RL
50
>1000
-
kOhm
Capacitive load
CL
1
3.9
5
nF
Capacitance that can be
driven by the sensor on
the signal lines. The
typical value is
recommended for
improved EMC
robustness.
Table 3 Electrical specifications, typical values are valid for T=25°C, min. & max. values for T=-40°C … 125°C.
2.2 Timing Specification for the Sensor System
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Comments
Power-up time
tPU
After hard reset,
VDD ≥ VPOR
-
-
17
ms
Time between VDD reaching
VPOR and first measurement
signal available
Analog output settling time
AOsettle
For a step of VDD/2
-
0.3
ms
Time needed for adapting to a
changing supply voltage and
measurement value. Value
depends on output load.
Typical value is for a load of
1nF.
Duration of reset pulse
tRESETN
1
-
-
us
See section 3.3
Table 4 System Timing Specification, valid from -40 °C to 125 °C and 2.4 V to 5.5 V.
2.3 Absolute Minimum and Maximum Ratings
Stress levels beyond those listed in Table 5 may cause permanent damage to the device or affect the reliability of the
sensor. These are stress ratings only and functional operation of the device at these conditions is not guaranteed. Ratings
are only tested each at a time.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 6/15
Parameter
Rating
Units
Supply voltage VDD
-0.3 to 6
V
Max Voltage on pins (pin 1 (RH); pin 2 (R); pin 3 (R); pin 4(T); pin 6 (nRESET))
-0.3 to VDD+0.3
V
Input current on any pin
±100
mA
Operating temperature range
-40 to 125
°C
Storage temperature range
-40 to 150
°C
ESD HBM (human body model)9
4
kV
ESD CDM (charge device model)10
750
V
Table 5 Minimum and maximum ratings; values may only be applied for short time periods.
9
According to ANSI/ESDA/JEDEC JS-001-2014; AEC-Q100-002
10
According to ANSI/ESD S5.3.1-2009; AEC-Q100-011.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 7/15
3 Pin Assignment
The SHT3x-ARP comes in a tiny 8-pin DFN package – see Table 6.
Pin
Name
Comments
1
RH
Analog voltage out; output
2
R
No electrical function; recommended to connect to VSS
3
R
No electrical function; recommended to connect to VSS
4
T
Analog voltage out; output
5
VDD
Supply voltage; input
6
nRESET
Reset pin active low; input; if not used it is recommended to be left floating; can be
connected to VDD with a series resistor of R ≥2 kΩ
7
R
No electrical function; to be connected to VSS
8
VSS
Ground
Table 6 SHT3x-ARP pin assignment (transparent top view). Dashed lines are only visible if viewed from below. The die pad is internally
connected to VSS.
3.1 Power Pins (VDD, VSS)
The electrical specifications of the SHT3x-ARP are shown in Table 3. The power supply pins must be decoupled with a
100 nF capacitor that shall be placed as close to the sensor as possible – see Figure 8 for a typical application circuit.
3.2 Temperature and Humidity Pin
The physical output of temperature and humidity can be read out at separated pins, as shown in Table 6. Data is supplied
as ratiometric voltage output. The specification of the analog voltage signal and its conversion to physical values is
explained in Section 4.
3.3 nRESET Pin
The nReset pin may be used to generate a reset of the sensor. A minimum pulse duration of 1 µs is required to reliably
trigger a reset of the sensor. If not used it is recommended to leave the pin floating or to connect it to VDD with a series
resistor of R ≥2 kΩ. In addition, the nRESET pin is internally connected to VDD with a pull up resistor of R = 50 kΩ (typ.).
1
2
3
45
8
7
6
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 8/15
Figure 8 Typical application circuit. Please note that the
positioning of the pins does not reflect the position on the
real sensor. This is shown in Table 6.
3.4 Die Pad (center pad)
The die pad or center pad is visible from below and located in the center of the package. It is electrically connected to
VSS. Hence electrical considerations do not impose constraints on the wiring of the die pad. However, due to mechanical
reasons it is recommended to solder the center pad to the PCB. For more information on design-in, please refer to the
document “SHTxx_STSxx Design Guide”.
4 Operation and Communication
4.1 Start-up of the sensor
The sensor starts up after reaching the power-up threshold voltage VPOR specified in Table 3. After reaching this threshold
voltage the sensor needs the time tPU until the first measurement signal is available as voltage output on the respective
output pins. During that time the temperature and humidity pins have an undefined state.
4.2 Conversion of the Signal Output
The physical values as measured by the sensor are mapped to a ratiometric voltage output (VT, VRH as 10 to 90% of VDD).
Prior to conversion into a voltage signal, the physical values are linearized and compensated for temperature and supply
voltage effects by the sensor. Additionally, the voltage output is calibrated for each sensor. Hence the relationship between
temperature and humidity and the voltage output is the same for each sensor, within the limits given by the accuracy (Table
1 and Table 2).
This allows to describe the relationship between physical values (RH and T) and the voltage output for temperature and
humidity (VT, VRH) through a generic linear formula given by equations (1), (2) and (3); its graphical representation can be
found in Figure 9 & Figure 10.
VDD
R(2 , 3 ,7 )
RH( 1 )
T(4 )
V D D ( 5 )
V S S ( 8 ) die
pad
100nF
n R E S E T (6 )
1 n F
1 n F
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 9/15
Figure 9 Relationship between the ratiometric analog voltage output and the measured relative humidity.
Figure 10 Relationship between the ratiometric analog voltage output and the measured temperature
DD
T
DD
T
V
V
V
V
66.875
0.8
175
0.8
17.5
45 C T 75.218
(2)
DD
T
DD
T
V
V
V
V
88.375
0.8
315
0.8
31.5
49 T 75.393F
(3)
Equations (2) and (3) describe the conversion formulae for the temperature signal in °C and °F.
0
10
20
30
40
50
60
70
80
90
100
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Relative Humidity (%)
Voltage out (VRH/VDD)
-49
1
51
101
151
201
251
-45
-25
-5
15
35
55
75
95
115
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Temperature (°F)
Temperature (°C)
Voltage out (VT/VDD)
DD
RH
DD
RH
V
V
V
V
0.8
100
0.8
10
12512.5 RH
(1)
Equation (1) describes the conversion formula for the RH signal.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 10/15
5 Packaging
SHT3x-ARP sensors are provided in an open-cavity DFN
package. DFN stands for dual flat no leads. The humidity
sensor opening is centered on the top side of the
package.
The sensor chip is made of silicon and is mounted to a
lead frame. The latter is made of Cu plated with
Ni/Pd/Au. Chip and lead frame are overmolded by an
epoxy-based mold compound leaving the central die pad
and I/O pins exposed for mechanical and electrical
connection. Please note that the side walls of the sensor
are diced and therefore these diced lead frame surfaces
are not covered with the respective plating.
The package (except for the humidity sensor opening)
follows JEDEC publication 95, design registration 4.20,
small scale plastic quad and dual inline, square and
rectangular, No-LEAD packages (with optional thermal
enhancements) small scale (QFN/SON), Issue D.01,
September 2009.
5.1 Traceability
All SHT3x-ARP sensors are laser marked for easy
identification and traceability. The marking on the sensor
top side consists of a pin-1 indicator and two lines of text.
The top line consists of the pin-1 indicator which is
located in the top left corner and the product name. The
small letter x stands for the accuracy class.
The bottom line consists of 6 letters. The first two digits
XY (=AR) describe the output mode. The third letter (A)
represents the manufacturing year (4 = 2014, 5 = 2015,
etc). The last three digits (BCD) represent an
alphanumeric tracking code. That code can be decoded
by Sensirion only and allows for tracking on batch level
through production, calibration and testing – and will be
provided upon justified request.
If viewed from below pin 1 is indicated by triangular
shaped cut in the otherwise rectangular die pad. The
dimensions of the triangular cut are shown in Figure 12
through the labels T1 & T2.
Figure 11 Top View of the SHT3x-ARP illustrating the laser
marking.
.
X Y A B C D
S H T 3x
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 11/15
5.2 Package Outline
Figure 12 Dimensional drawing of SHT3x-ARP sensor package.
Parameter
Symbol
Min
Nom.
Max
Units
Comments
Package height
A
0.8
0.9
1
mm
Leadframe height
A3
-
0.2
-
mm
Not shown in the drawing
Pad width
b
0.2
0.25
0.3
mm
Package width
D
2.4
2.5
2.6
mm
Center pad length
D2
1
1.1
1.2
mm
Package length
E
2.4
2.5
2.6
mm
Center pad width
E2
1.7
1.8
1.9
mm
Pad pitch
e
-
0.5
-
mm
Pad length
L
0.25
0.35
0.45
mm
Max cavity
S
-
-
1.5
mm
Only as guidance. This value includes all tolerances,
including displacement tolerances. Typically the
opening will be smaller.
Center pad marking
T1xT2
0.3x45°
mm
indicates the position of pin 1
Table 7 Package outline
5.3 Land Pattern
Figure 13 shows the land pattern. The land pattern is
understood to be the open metal areas on the PCB, onto
which the DFN pads are soldered.
The solder mask is understood to be the insulating layer
on top of the PCB covering the copper traces. It is
recommended to design the solder mask as a Non-
Solder Mask Defined (NSMD) type. For NSMD pads, the
solder mask opening should provide a 60 μm to 75 μm
design clearance between any copper pad and solder
mask. As the pad pitch is only 0.5 mm we recommend to
have one solder mask opening for all 4 I/O pads on one
side.
For solder paste printing it is recommended to use a
laser-cut, stainless steel stencil with electro-polished
trapezoidal walls and with 0.1 or 0.125 mm stencil
thickness. The length of the stencil apertures for the I/O
pads should be the same as the PCB pads. However,
the position of the stencil apertures should have an offset
of 0.1 mm away from the center of the package. The die
pad aperture should cover about 70 – 90 % of the die
pad area –thus it should have a size of about 0.9 mm x
1.6 mm.
For information on the soldering process and further
recommendation on the assembly process please
consult the Application Note
SHTxx_STSxx_Assembly_of_SMD_Packages, which
can be found on the Sensirion webpage.
E
D
S
A
e
b
D 2
E 2
L
T 1 x T 2
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 12/15
Figure 13 Recommended metal land pattern (left) and stencil apertures (right) for the SHT3x-ARP. The dashed lines represent the
outer dimension of the DFN package. The PCB pads (left) and stencil apertures (right) are indicated through the shaded areas.
6 Shipping Package
Figure 14 Technical drawing of the packaging tape with sensor orientation in tape. Header tape is to the right and trailer tape to the
left on this drawing. Dimensions are given in millimeters.
7 Quality
Qualification of the SHT3x-ARP is performed based on the AEC Q 100 qualification test method.
R e c o m m e n d e d L a n d P a tte r n R e c o m m e n d e d S te n c il A p e rtu r e
1 .7
0 .2 5
0 .5 5 1
0 .5 0 .5 0 .5
2 .3 5
0 .2 0 .9
1 .6
0 .5 0 .5 0 .5
0 .2 5
0 .5 5
2 .5 5
0 .3
TO LE R A N C E S - U N L E S S
N O T E D 1P L ± .2 2 P L ± .10
A = 2.75
B = 2.75
K = 1.20
0
0
0
N O T E S :
1. 10 S P R O C K E T H O LE P IT C H C U M U L AT IV E TO LE R A N C E ±0 .2
2. P O C K E T P O S IT IO N R E LAT IV E TO S P R O C K E T H O LE M E A S U R E D
A S T R U E P O S IT IO N O F P O C K E T, N O T P O C K E T H O LE
3. A 0 A N D B 0 A R E C A LC U LAT E D O N A P L A N E AT A D IS TA N C E "R "
A B O V E T H E B O TTO M O F T H E P O C K E T
A0
K0
B0
R 0 .25 T Y P.
S E C T IO N A - A
0.3 0 ±.05
A
R 0 .2 M A X .
0.3 0 ±.05
2.0 0 ±.05 S E E N o te 2
4.0 0
4.0 0 S E E N ote 1
Ø 1.5 + .1 /-0 .0
Ø 1.00 M IN
1.7 5 ±.1
12.0 + 0 .3/-0 .1
5.5 0 ±.05
S E E N O TE 2
A
B
D E TA IL B
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 13/15
7.1 Material Contents
The device is fully RoHS and WEEE compliant, e.g. free of Pb, Cd, and Hg.
8 Ordering Information
The SHT3x-ARP can be ordered in tape and reel packaging with different sizes, see Table 8. The reels are sealed into
antistatic ESD bags. The document “SHT3x shipping package” that shows the details about the shipping package is
available upon request.
Name
Quantity
Order Number
SHT30-ARP-B2.5kS
2500
1-101381-01
SHT30-ARP-B10kS
10000
1-101175-01
SHT31-ARP-B2.5kS
2500
1-101385-01
SHT31-ARP-B10kS
10000
1-101178-01
Table 8 SHT3x-ARP ordering options.
9 Further Information
For more in-depth information on the SHT3x-ARP and its application please consult the following documents:
Document Name
Description
Source
SHT3x Shipping Package
Information on Tape, Reel and shipping bags
(technical drawing and dimensions)
Available upon request
SHTxx_STSxx Assembly of SMD
Packages
Assembly Guide (Soldering Instruction,)
Available for download at the
Sensirion humidity sensors download
center:
www.sensirion.com/humidity-
download
SHTxx_STSxx Design Guide
Design guidelines for designing SHTxx/STSxx
sensors into applications
Available for download at the
Sensirion humidity sensors download
center: www.sensirion.com/humidity-
download
SHTxx Handling Instructions
Guidelines for proper handling of SHTxx humidity
sensors (Reconditioning Procedure)
Available for download at the
Sensirion humidity sensors download
center: www.sensirion.com/humidity-
download
Sensirion Humidity Sensor
Specification Statement
Definition of sensor specifications.
Available for download at the
Sensirion humidity sensors download
center: www.sensirion.com/humidity-
download
Table 9 Documents containing further information relevant for theSHT3x-ARP.
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 14/15
Revision History
Date
Version
Page(s)
Changes
October 2015
1
Initial release
January 2016
2
12
Update ordering information
September 2018
3
multiple
2
2
4
4
5
5
5
6
7
7
8
11
Typo & formatting correction
Added sensitivity at VDD=5.0V in Table 1
Added sensitivity at VDD=5.0V and refined resolution in Table 2
Limitation of T accuracies to VDD=4.5V...5.5V and refined max. accuracies in
Figure 6
Limitation of T accuracies to VDD=4.5V...5.5V and refined max and typ.
accuracies in Figure 7
Table 3: Updated VPOR, RL and CL values; replaced “Output current” with
“Resistive load to VSS”; more detailed specification of supply current; refined
table caption;
Updated duration of reset pulse in Table 4
Introduced “Ratings are only tested each at a time” in section 2.3.
Updated Footnotes 9 and 10
Updated nRESET description in Table 6
Updated nRESET description in section 3.3
Updated capacitor values and connect. in typ. application circuit in Figure 8
Updated min. & max. values of pad length in Table 7
Datasheet SHT3x-ARP
www.sensirion.com September 2018 - Version 3 15/15
Important Notices
Warning, Personal Injury
Do not use this product as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury. Do not use this
product for applications other than its intended and
authorized use. Before installing, handling, using or
servicing this product, please consult the data sheet and
application notes. Failure to comply with these instructions
could result in death or serious injury.
If the Buyer shall purchase or use SENSIRION products for any
unintended or unauthorized application, Buyer shall defend,
indemnify and hold harmless SENSIRION and its officers,
employees, subsidiaries, affiliates and distributors against all
claims, costs, damages and expenses, and reasonable attorney
fees arising out of, directly or indirectly, any claim of personal
injury or death associated with such unintended or unauthorized
use, even if SENSIRION shall be allegedly negligent with
respect to the design or the manufacture of the product.
ESD Precautions
The inherent design of this component causes it to be sensitive
to electrostatic discharge (ESD). To prevent ESD-induced
damage and/or degradation, take customary and statutory ESD
precautions when handling this product.
See application note “ESD, Latchup and EMC” for more
information.
Warranty
SENSIRION warrants solely to the original purchaser of this
product for a period of 12 months (one year) from the date of
delivery that this product shall be of the quality, material and
workmanship defined in SENSIRION’s published specifications
of the product. Within such period, if proven to be defective,
SENSIRION shall repair and/or replace this product, in
SENSIRION’s discretion, free of charge to the Buyer, provided
that:
notice in writing describing the defects shall be given to
SENSIRION within fourteen (14) days after their
appearance;
such defects shall be found, to SENSIRION’s reasonable
satisfaction, to have arisen from SENSIRION’s faulty
design, material, or workmanship;
the defective product shall be returned to SENSIRION’s
factory at the Buyer’s expense; and
the warranty period for any repaired or replaced product
shall be limited to the unexpired portion of the original
period.
This warranty does not apply to any equipment which has not
been installed and used within the specifications recommended
by SENSIRION for the intended and proper use of the
equipment. EXCEPT FOR THE WARRANTIES EXPRESSLY
SET FORTH HEREIN, SENSIRION MAKES NO
WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH
RESPECT TO THE PRODUCT. ANY AND ALL WARRANTIES,
INCLUDING WITHOUT LIMITATION, WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSLY EXCLUDED AND DECLINED.
SENSIRION is only liable for defects of this product arising
under the conditions of operation provided for in the data sheet
and proper use of the goods. SENSIRION explicitly disclaims all
warranties, express or implied, for any period during which the
goods are operated or stored not in accordance with the
technical specifications.
SENSIRION does not assume any liability arising out of any
application or use of any product or circuit and specifically
disclaims any and all liability, including without limitation
consequential or incidental damages. All operating parameters,
including without limitation recommended parameters, must be
validated for each customer’s applications by customer’s
technical experts. Recommended parameters can and do vary
in different applications.
SENSIRION reserves the right, without further notice, (i) to
change the product specifications and/or the information in this
document and (ii) to improve reliability, functions and design of
this product.
Copyright © 2018, by SENSIRION.
CMOSens® is a trademark of Sensirion
All rights reserved
Headquarters and Subsidiaries
SENSIRION AG
Laubisruetistr. 50
CH-8712 Staefa ZH
Switzerland
phone: +41 44 306 40 00
fax: +41 44 306 40 30
info@sensirion.com
www.sensirion.com
Sensirion Inc. USA
phone: +1 312 690 5858
info-us@sensirion.com
www.sensirion.com
Sensirion Japan Co. Ltd.
phone: +81 3 3444 4940
info-jp@sensirion.com
www.sensirion.co.jp
Sensirion Korea Co. Ltd.
phone: +82 31 337 7700~3
info-kr@sensirion.com
www.sensirion.co.kr
Sensirion China Co. Ltd.
phone: +86 755 8252 1501
info-cn@sensirion.com
www.sensirion.com.cn/
Sensirion Taiwan Co. Ltd.
phone: +41 44 306 40 00
info@sensirion.com
To find your local representative, please visit www.sensirion.com/contact
