SDP800 Series Differential Pressure Sensors

By Sensirion 91

SDP800 Series Differential Pressure Sensors

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.

CMOSens® Technology Benefits
  • High reliability and long-term stability
  • Industry-proven technology with a track record of more than 15 years
  • Best signal-to-noise ratio
  • Designed for mass production
  • High process capability

Sensirion’s EK-P5 evaluation kit provides a straightforward and cost-effective option for testing the differential pressure sensors of the SDP800 series. The set consists of a USB stick that is connected to the SDP810-500Pa sensor by an adapter cable. With the software, which is available online for download, the differential pressure sensor can be tested under realistic conditions by following simple installation steps. Consequently, there is no need to program a microprocessor as the evaluation kit is connected directly to a PC. The included software allows displaying measured values on the screen and additionally provides the option of exporting the data to an Excel datatype. This enables the data to be saved and processed in a simple manner.

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