SDP37

Analog differential pressure sensor (±125 Pa)

Specification

Differential pressure
Accuracy
3
% m.v.
Pressure range
±125
Pa
Zero point accuracy
0.08
Pa
Calibration
Air and N₂
Generic
Supply voltage
3 - 3.6
V
Average supply current
3800
uA
Max. supply current
5500
uA
Interfaces
Analog voltage
Package size (LxWxH)
8.5 x 5.5 x 5.15
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SDP3x analog
Datasheet
12/2017
PDF
824.0 KB
Burst and overpressure specifications
Application note
05/2022
PDF
95.4 KB
Compensation of pressure drop in a hose SDP3x
Application note
07/2016
PDF
372.7 KB
Engineering guidelines SDP3x
User guide
08/2016
PDF
348.2 KB
Handling instructions SDP3x
User guide
08/2016
PDF
101.3 KB
Sample code SDP3x
Software
10/2021
ZIP
302.0 KB
STEP file SDP3x
CAD
10/2021
STEP
1014.5 KB
Calibration Certification SDP3x
Certificate
04/2022
PDF
90.7 KB
Product flyer consumer electronics SDP3x
Flyer
04/2017
PDF
661.2 KB
Product flyer medical SDP3x
Flyer
04/2017
PDF
655.2 KB
Product flyer vacuum cleaner SDP3x
Flyer
06/2018
PDF
874.0 KB
Efficient gas flow measurements in bypass
Application note
10/2018
PDF
211.4 KB
Mass flow temperature compensation & sensor selection guide
Application note
01/2017
PDF
339.2 KB
Testing guide SDP
User guide
10/2018
PDF
443.5 KB
REACH and RoHS declaration SDP
Certificate
07/2022
PDF
99.4 KB
Product flyer SDP
Flyer
07/2021
PDF
2.0 MB

The SDP3x is the world's smallest differential pressure sensor. It measures just 5 mm x 8 mm x 5 mm, opening up new dimensions of integration and application possibilities. The sensor is based on the next generation of the CMOSens® sensor chip and is the heart of Sensirion's new sensor platform for measuring differential pressure and mass flow.

The SDP3x differential pressure is ideal for the measurement of mass flow in a bypass configuration. The sensor is reflow solderable, provides extended functionality, such as multiple I²C addresses and interrupt functions and a fast sampling time. Like all Sensirion differential pressure sensors, the SDP3x features excellent accuracy and long-term stability and has no zero-point drift. All this makes Sensirion's differential pressure sensor of the SDP3x series the perfect choice for high volume and cost-sensitive applications, where small size is essential.

The digital and fully calibrated and temperature compensated differential pressure sensor are available in different versions. The digital SDP31 sensor and the analog SDP36 sensor measure bi-directional pressure differences up to 500 Pa, while the digital SDP32 and the analog SDP37 measure bi-directional pressure differences up to 125 Pa.

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