www.sensirion.com Version 0.4 – January 2017 1/8
Preliminary Datasheet SDP8xx-Analog
Differential Pressure Sensor with Analog Output
Configurable analog output
Calibrated and temperature compensated
Excellent repeatability, no drift
Product Summary
The SDP800 sensor family is Sensirion’s series of differential pressure sensors designed for high-volume applications. The
sensors measure the pressure of air and non-aggressive gases with superb accuracy and no offset drift. The sensors cover a
pressure range of up to ±500 Pa (±2 inch H2O / ±5 mbar) and deliver outstanding accuracy, also at the lower end of the
measuring range.
The SDP800 features an analog ratiometric voltage output, which is configurable to linear or square root by a separate pin.
The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology, which
combines the sensor element, signal processing, digital calibration and analog output on a small CMOS chip. The differential
pressure is measured by a thermal sensor element using flow-through technology. The well-proven CMOS technology is
perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.
Benefits of Sensirion’s CMOSens® Technology
High reliability and long-term stability
Best signal to noise ratio
Industry-proven technology with a track record of more
than 15 years
Designed for mass production
High process capability
Content
1. Sensor Performance .............................................................. 2
2. Specifications ......................................................................... 3
3. Pin Assignment ...................................................................... 4
4. Package Outline..................................................................... 5
5. Soldering ................................................................................ 6
6. Shipping Package .................................................................. 7
7. Ordering Information .............................................................. 7
Revision History .............................................................................. 7
Important Notices ........................................................................... 8
Headquarters and Subsidiaries ...................................................... 8
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1. Sensor Performance
1.1 Differential Pressure Specification
1
1
Unless otherwise noted, all sensor specifications are valid at 25°C with VDD = 3.3 V and absolute pressure = 966 mbar.
2
For other pressure ranges contact Sensirion
3
Includes repeatability
4
Total accuracy/repeatability is a sum of zero-point and span accuracy/repeatability.
5
Output voltage integral non linearity and output voltage noise are not included. Note that the effect of output voltage integral non linearity and output
voltage noise on accuracy is highly dependent on the output configuration (linear or square root).
6
For more information about temperature and pressure compensation consult the selection guide in the differential pressure download center on our
website.
Parameter
Configuration
SDP806/SDP816-500Pa
SDP806/SDP816-125Pa
Measurement range 2
Linear
– 50 to + 500 Pa
(-0.2 to 2.0 in. H2O)
- 12.5 to + 125 Pa
(-0.05 to 0.5 in. H2O)
Square Root
– 500 to + 500 Pa
(-2.0 to 2.0 in. H2O)
- 125 to + 125 Pa
(-0.5 to 0.5 in. H2O)
Zero point accuracy 3,4,5
0.1 Pa 5
0.08 Pa 5
Span accuracy 3,4,5
3% of reading 5
3% of reading 5
Zero point repeatability 4,5
0.05 Pa 5
0.04 Pa 5
Span repeatability 4,5
0.5% of reading 5
0.5% of reading 5
Span shift due to temperature
variation
< 0.5% of reading per 10°C
< 0.5% of reading per 10°C
Offset stability
< 0.05 Pa/year
< 0.05 Pa/year
Temperature and pressure
compensation
Mass flow compensated differential pressure6
Response time (τ63)
< 5 ms
Internal digital resolution
16 bit
Calibrated for
Air, N2
Media compatibility
Air, N2, O2, non-condensing
Calibrated temperature range
-20 °C to +85 °C
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2. Specifications
2.1 Electrical Specifications
Parameter
Condition
Min.
Typ.
Max.
Units
Comments
Supply
Supply Voltage
3.0
5.5
V
Power-up/down level
2.3
2.5
2.7
V
Supply current
3.8
5.5
mA
Ratiometric analog voltage output
Output range
0.1
0.9
VDD
Resistive load to GND
10 1
100
kOhm
Resistive load to VDD
1000
kOhm
Capacitive load
100
nF
Output voltage Integral
Non Linearity (INL)
5
mV
Output voltage noise
(RMS)
0.5
mV
2.2 Timing Specifications
Parameter
Condition
Min.
Typ.
Max.
Units
Comments
Power-up time
25
ms
Time to first reliable
measurement
2.3 Mechanical Specifications
Parameter
Condition
Min.
Typ.
Max.
Units
Comments
Allowable overpressure
1
bar
Rated burst pressure
5
bar
Weight
6
g
2.4 Materials
Parameter
Wetted materials
PBT (polybutylene terephthalate), glass (silicon nitride, silicon oxide), silicon, gold, FR4, silicone as static
sealing, epoxy, copper alloy, lead-free solder
REACH, RoHS
REACH and RoHS compliant
2.5 Absolute Maximum Ratings
Parameter
Rating
Units
Supply Voltage VDD
-0.3 to 5.5
V
Max Voltage on pins (Inputs)
-0.3 to VDD+0.3
V
Input current on any pin
±70
mA
Operating temperature range 2
-40 to +85
°C
Storage temperature range
-40 to +85
°C
Max. humidity for long term exposure
40°C dew point
ESD HBM (human body model)
2
kV
1
For a resistive load to GND less than 100kOhm a 1nF capacitor to GND on the AOUT is recommended
2
For Air and N2. Long term exposure to (high concentrations of) O2 at high temperatures can reduce the product lifetime
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3. Pin Assignment
The pin assignments of the SDP8xx-Analog can be found in Table 1.
Pin no.
Name
Description
1
OCS
Output curve selection input
2
VDD
VDD Supply
3
GND
Connect to ground
4
AOut
Ratiometric analog voltage output
Table 1: SDP8xx-Analog pin assignment (bottom view)
3.1 OCS: Output Curve Selection Input
Config.
Polarity
Description
Conversion to physical values
AOut[V], VDD[V], Differential Pressure (DP) [Pa]
Linear
Low
(GND)
Analog output is configured as a linear
output. The sensor is not fully bi-
directional in this configuration: -10% full-
scale to 100% full scale.
500Pa
 
 
125Pa
 
 
Square
Root
High
(VDD)
Analog output is a fully bi-directional
output with square root conversion. The
benefits are that the bidirectional output
has a more stable zero point and higher
sensitivity at lower pressures
500Pa
 
  

125Pa
 
  

3.2 AOut Pin
The AOut pin gives out an analog ratiometric voltage, representing the measured differential pressure value. Please note the
resistive and capacitive loads as mentioned in section 2.1.
Formulas for converting AOut [V] to differential pressure [Pa] can be found in section 3.1.
AOUT GND VDD OCS
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4. Package Outline
4.1 Dimensions SDP80x – Manifold Connection
Figure 1: SDP80x. All dimensions in mm.
4.2 Dimensions SDP81x – Tube Connection
Figure 2: SDP81x. All dimensions in mm.
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4.3 Footprint
Figure 3: Footprint for PCB mounting (top view = sensor side). All dimensions in mm.
A: Overall sensor dimensions
B: Holes for additional mounting screws (optional)
In case the sensor is not mounted on a PCB and is connected with a cable the SDP800/SDP600 series cap is recommended.
5. Soldering
Standard wave soldering systems may be used for soldering SDP800 series sensors. Reflow soldering is not feasible and
may damage the sensor.
The sensor ports must be protected from solder splash and flux during soldering. Figure 4 shows an appropriate temperature
profile with maximum temperature values.
Figure 4: Suitable wave soldering profile.
The characteristics of wave soldering machines vary, so any soldering setup must be tested before production use.
200°C
150°C
100°C
50°C
0°C
250°C
Start
Flux zone
Preheat zone
Entrance to solder Wave
Exit from solder Wave
Solder Wave Peak
Temp. Max. 260°C
Max 145°C
Approx. PCB bottom-
side temp.
PCB top-side
temperature
Approx.
1 min
(Time in wave < 2 s)
A
B
OCS VDD GND AOUT
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6. Shipping Package
SDP8xx are shipped in trays of 80pcs. The tray dimension is 355mm x 255mm x 21.5mm. By piling them up, the height per
tray can be considered as 19mm.
7. Ordering Information
Use the part names and item numbers shown in the following table when ordering SDP8xx differential pressure sensor. For
the latest product information and local distributors, visit www.sensirion.com.
Part name
Description / Output
Differential Pressure
Temperature Compensation
Product number
SDP806-500Pa
Manifold mount, 500Pa, Analog
Mass Flow
1-101504-01
SDP816-500Pa
Tube connection, 500Pa, Analog
Mass Flow
1-101595-01
SDP806-125Pa
Manifold mount, 125Pa, Analog
Mass Flow
1-101598-01
SDP816-125Pa
Tube connection, 125Pa, Analog
Mass Flow
1-101596-01
Revision History
Date
Author
Version
Changes
06.05.2016
ANB
V0.1
First Draft
19.09.2016
ANB
V0.2
Added 125Pa variants. Minor changes
05.12.2016
ANB
V0.3
Product numbers added. Minor changes.
.01.2017
ANB
V0.4
Drawings updated.
www.sensirion.com Version 0.4 – January 2017 8/8
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 (including death). 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 datasheet 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 “Handling Instructions” 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 datasheet 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 © 2016-2017, SENSIRION.
CMOSens® is a trademark of Sensirion
All rights reserved
Headquarters and Subsidiaries
SENSIRION AG
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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
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