Sensirion SDP3x Differential Pressure Sensors
Sensirion SDP3x Differential Pressure Sensors are designed for high-volume applications where size is an important requirement. Based on Sensirion’s CMOSens® sensor chip the SDP3x features excellent accuracy and long-term stability and has no zero-point drift. The SDP3x Differential Pressure Sensors are available in digital or analog output. Measuring 5mm x 8mm x 5mm, the small SDP3x sensors are ideal for medical devices, drones, appliances, and more.
Features
- 5mm x 8mm x 5mm in dimension
- Measurement range of ±500Pa (±2in. H2O) or ±125Pa (±0.5in. H2O)
- Excellent accuracy and repeatability, even below 1Pa
- No zero-point offset (digital version), 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 (digital version)
Applications
- Medical
- Medical home care applications
- Portable medical devices
- Smart Inhalers
- Lifestyle and consumer (IoT)
- Appliances
- Drones
- Wind speed meters
Specifications
- Digital models (SDP31, SDP32, and SDP33)
- I2C output
- Manifold pneumatic connection
- Bidirectional pressure ranges
- 500Pa, 2.0" H2O for SDP31
- 125Pa, 0.5" H2O for SDP32
- 1500Pa, 6.0" H2O for SDP33
- 2.7V to 5.5V power supply range
- 3% accuracy of the measured value
- Lowest detectable pressures
- <0.02Pa for SDP31
- <0.01Pa for SDP32
- <0.06Pa for SDP33
- 0.5ms measurement speed
- Calibrated for air and N2
- Air and inert gases compatibility
- Analog models (SDP36 and SDP37)
- Analog output
- Manifold pneumatic connection
- Bidirectional pressure ranges
- 500Pa, 2.0" H2O for SDP36
- 125Pa, 0.5" H2O for SDP37
- 2.7V to 5.5V power supply range
- 3% accuracy of the measured value
- Lowest detectable pressures
- <0.02Pa for SDP36
- <0.01Pa for SDP37
- 5ms measurement speed
- Calibrated for air and N2
- Air and inert gases compatibility
Analog Sensors
The analog SDP3x sensors offer a calibrated and temperature compensated analog voltage output. The output signal is configurable: different measurement speeds, output curves, and temperature compensations can be selected – even dynamically during operation mode.
Digital Sensors
The digital SDP3x sensors feature fast measurement speed, excellent accuracy, long-term stability, and has no zero-point drift. The sensors provide extended functionality, including smart averaging, multiple temperature compensation modes, and configurable I²C addresses and interrupts.
Videos
Additional Resources
Evaluation Tools
Sensirion Kit di valutazione pressione differenziale SEK-SDP31
Fornisce una piattaforma di dimostrazione facile da usare ed economica per il sensore di pressione SDP31.
Pubblicato: 2016-09-14
| Aggiornato: 2022-05-23