Datasheet SDP8xx-Digital Digital Differential Pressure Sensor Excellent repeatability, no drift, no offset Extended feature set smart averaging Calibrated and temperature compensated Product Summary The SDP800 sensor family is Sensirions series of digital 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 H O / 5 mbar) and deliver outstanding accuracy, also at the bottom end of 2 the measuring range. 2 The SDP800 Series features a digital 2-wire I C interface, which makes it easy to connect directly to a microprocessor. The outstanding performance of these sensors is based on Sensirions patented CMOSens sensor technology, which combines the sensor element, signal processing and digital calibration 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 Sensirions 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. Ordering Information .............................................................. 2 2. Sensor Performance .............................................................. 2 3. Specifications ......................................................................... 3 4. Pin Assignment ...................................................................... 4 5. Measurement Modes ............................................................. 5 6. Digital Interface Description ................................................... 6 7. Package Outline................................................................... 11 8. Soldering .............................................................................. 13 9. Shipping Package ................................................................ 13 Revision History ............................................................................ 13 Important Notices ......................................................................... 14 Headquarters and Subsidiaries .................................................... 14 www.sensirion.com Version 1.1 April 2019 1/14 1. Ordering Information Use the part name and order number shown in the following table when ordering SDP800 series differential pressure sensor. 2 Part name Form Factor Range I C address Shipping Package Order number SDP800-500Pa Manifold mount 500Pa - bidirectional 0x25 Trays of 80 pieces 1-101551-01 SDP801-500Pa Manifold mount 500Pa - bidirectional 0x26 Trays of 80 pieces 3.000.142 SDP810-500Pa Tube connection 500Pa - bidirectional 0x25 Trays of 80 pieces 1-101532-01 SDP811-500Pa Tube connection 500Pa - bidirectional 0x26 Trays of 80 pieces 3.000.144 SDP800-125Pa Manifold mount 125Pa - bidirectional 0x25 Trays of 80 pieces 1-101599-01 SDP810-125Pa Tube connection 125Pa - bidirectional 0x25 Trays of 80 pieces 1-101597-01 2. Sensor Performance 1 2.1 Differential Pressure Specification Parameter SDP8xx-500Pa SDP8xx-125Pa Measurement range -500 to 500 Pa -125 to 125 Pa (-2 to 2 inH O) (-0.5 to 0.5 inH O) 2 2 2,3 Zero point accuracy 0.1 Pa 0.08 Pa 2,3 Span accuracy 3% of reading 3% of reading 3 Zero point repeatability 0.05 Pa 0.04 Pa 3 Span repeatability 0.5% of reading 0.5% of reading Span shift due to temperature < 0.5% of reading per 10C < 0.5% of reading per 10C variation Offset stability < 0.05 Pa/year < 0.05 Pa/year Flow step response time ( ) < 3ms 63 Resolution 16 bit Calibrated for Air, N 2 Media compatibility Air, N O , non-condensing 2, 2 Temperature compensation range -20 C to +85 C 4 2.2 Temperature Specification Parameter Value Measurement range -40 C to +85 C Resolution 16 bit 2 C (-10 C to +60 C) Accuracy 3 C (-40 C to +85 C) Repeatability 0.1C 1 Unless otherwise noted, all sensor specifications are valid at 25C with VDD = 3.3 V and absolute pressure = 966 mbar. 2 Includes repeatability 3 Total accuracy/repeatability is a sum of zero-point and span accuracy/repeatability. 4 The measured temperature is the temperature of the bulk silicon in the sensor. This temperature value is not only depending on the gas temperature, but also on the sensors surroundings. Using the signal to measure solely the gas temperature will need special precautions, such as isolating the sensor from external temperate influences. www.sensirion.com Version 1.1 April 2019 2/14