Summary of SDP3x Series – Differential Pressure Sensors
The SDP3x series by Sensirion features the world's smallest differential pressure sensor, measuring 5 mm x 8 mm x 5 mm. Based on CMOSens® technology, it offers high accuracy, long-term stability, and no zero-point drift. Available in digital (SDP31/32) and analog (SDP36/37) versions with ranges up to ±500 Pa or ±125 Pa, these sensors are reflow solderable and include fast sampling times. An evaluation kit is provided for easy testing.
Parts used in the SDP3x Series:
- SDP31 digital sensor
- SDP32 digital sensor
- SDP36 analog sensor
- SDP37 analog sensor
- CMOSens sensor chip
- Evaluation kit
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 senor 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 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. Sensor versions with other pressure ranges will be available later in 2016.
An evaluation kit is available that enables simple and cost-effective evaluation of the SDP3x differential pressure sensor.
The SDP3x Series
SDP31 – digital version (I2C), pressure range: +/- 500 Pa
SDP32 – digital version (I2C), pressure range: +/- 125 Pa
SDP36 – analog version, pressure range: +/- 500 Pa
SDP37 – analog version, pressure range: +/- 125 Pa
Features
- Smallest size (5mm x 8mm x 5mm), opening up new dimension of integration and applications possibilities
- Measurement range ±500Pa (±2 in. H2O), other ranges available later 2016
- Excellent accuracy and repeatability, even below 1Pa
- No zero-offset, no drift
- Calibrated and temperature compensated
- Fast sampling time of 2kHz at 16 bit resolution
- Digital I2C and analog output versions
- Reflow solderable, shipped in tape and reel for pick and place
- Smart averaging algorithm and other digital and analog features
- Evaluation kit available
For more detail: SDP3x Series – Differential Pressure Sensors
- What are the dimensions of the SDP3x sensor?
The sensor measures just 5 mm x 8 mm x 5 mm. - Does the SDP3x have zero-point drift?
No, the sensor has no zero-point drift. - Can the SDP3x be used with a pick and place machine?
Yes, it is shipped in tape and reel for pick and place. - What is the maximum pressure range for the SDP31 sensor?
The SDP31 measures bi-directional pressure differences up to 500 Pa. - How fast is the sampling time of the SDP3x?
The sensor has a fast sampling time of 2kHz at 16 bit resolution. - Is there an evaluation kit available for this sensor?
Yes, an evaluation kit is available for simple and cost-effective evaluation. - Are both digital and analog versions available?
Yes, digital I2C versions like SDP31 exist alongside analog versions like SDP36. - What technology is the heart of the SDP3x sensor platform?
The sensor is based on the next generation of the CMOSens sensor chip.
