DPS310 TM Digital XENSIV Barometric Pressure Sensor for Portable Devices Product Description The DPS310 is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low current consumption, capable of measuring both pressure and temperature. The pressure sensor element is based on a capacitive sensing principle which guarantees high precision during temperature changes. The small package makes the DPS310 ideal for mobile applications and wearable devices. The internal signal processor converts the output from the pressure and temperature sensor elements to 24 bit results. Each unit is individually calibrated, the calibration coefficients calculated during this process are stored in the calibration registers. The coefficients are used in the application to convert the measurement results to high accuracy pressure and temperature values. The result FIFO can store up to 32 measurement results, allowing for a reduced host processor polling rate. Sensor measurements and calibration coefficients 2 are available through the serial I C or SPI interface. The measurement status is indicated by status bits or interrupts on the SDO pin. Features Operation range: Pressure: 300 1200 hPa. Temperature: -40 85 C. Pressure sensor precision: 0.002 hPa (or 0.02 m) (high precision mode). Relative accuracy: 0.06 hPa (or 0.5 m) Absolute accuracy: 1 hPa (or 8 m) Temperature accuracy: 0.5C. Pressure temperature sensitivity: 0.5Pa/K Measurement time: Typical: 27.6 ms for standard mode (16x). Minimum: 3.6 ms for low precision mode. Average current consumption: 1.7 A for Pressure Measurement, 1.5uA for Temperature measurement 1Hz sampling rate, Standby: 0.5 A. Supply voltage: VDDIO: 1.2 3.6 V, VDD: 1.7 3.6 V. Operating modes: Command (manual), Background (automatic), and Standby. Calibration: Individually calibrated with coefficients for measurement correction. FIFO: Stores up to 32 pressure or temperature measurements. 2 Interface: I C and SPI (both with optional interrupt) Package dimensions: 8-pin LGA, 2.0 mm x 2.5 mm x 1.0 mm. Green Product (RoHS) Compliant Typical Applications Indoor Navigation (floor detection e.g. in shopping malls and parking garages) Health and Sports (accurate elevation gain and vertical speed) Outdoor Navigation (GPS start-up time and accuracy improvement, dead-reckoning e.g. in tunnels) Weather Station( Micro-weather and local forecasts) HDD drivers, (leak rate detection in hard disk drives) Drones (flight stability and height control) Please read the Important Notice and Warnings at the end of this document V1.2 www.infineon.com 2020-10-15DPS310 TM Digital XENSIV Barometric Pressure Sensor for Portable Devices Table of contents Table of contents Product Description 1 Features . 1 Typical Applications 1 Table of contents . 2 1 Definitions, acronyms and abbreviations 4 1.1 Definitions 4 2 Pin Configuration and Block Diagram 5 2.1 Pin Configuration and Description .5 2.2 Block Diagram 6 3 Specifications 6 3.1 Operating Range 6 3.2 Absolute Maximum Ratings .7 3.3 Current Consumption 7 3.4 Temperature Transfer Function . 8 3.5 Pressure Transfer Function . 9 3.6 Timing Characteristics 10 4 Functional Description .10 4.1 Operating Modes . 10 4.2 Mode transition diagram 10 4.3 Start-up sequence 11 4.4 Measurement Precision and Rate 11 4.5 Sensor Interface 12 4.6 Interrupt 12 4.7 Result Register Operation . 13 4.8 FIFO Operation . 13 4.9 Calibration and Measurement Compensation . 13 4.9.1 How to Calculate Compensated Pressure Values . 14 4.9.2 How to Calculate Compensated Temperature Values . 14 4.9.3 Compensation Scale Factors . 15 4.9.4 Pressure and Temperature calculation flow . 15 5 Applications .17 5.1 Measurement Settings and Use Case Examples 17 5.2 Application Circuit Example . 18 5.3 IIR filtering .19 6 Digital interfaces 19 6.1 I2C Interface . 20 6.2 SPI Interface . 20 2 V1.2 2020-10-15