Product Brief DPS310 Digital Barometric Pressure Sensor for Mobile and Wearable Devices Description The DPS310 is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy level and low current consumption. The DPS310 is both a pressure and temperature sensor. The pressure sensor element is based on a capacitive principle which guarantees high precision during temperature changes. The small package makes the DPS310 ideal for mobile applications and wearable devices. The DPS310’s internal signal processor converts the output from the pressure and temperature sensor elements to 24-bit results. Each pressure sensor has been calibrated individually and contains calibration coefficients. The coefficients are used in the application to convert the measurement results to true pressure and temperature values. The sensor has a FIFO that can store the latest 32 measurements. Since the host processor can remain in a sleep mode for a longer period between readouts, a FIFO can reduce the system power consumption. Sensor measurements and calibration coefficients are available via the serial I2C / SPI interface. 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 Local weather station www.infineon.com Features Operation range: –– Pressure: 300 … 1200hPa –– Temperature: -40 … 85°C Pressure level precision: –– ±0.006hPa (or ±5cm) (high-precision mode) Pressure sensor relative accuracy: –– ±0.06hPa (or ±0.5m) Temperature accuracy: –– ±0.5°C Pressure temperature sensitivity: –– < 0.5Pa/K Measurement time: –– Low-power mode: 3ms Average current consumption: –– Low power: 3µA (1 measurement/sec.) –– Standby: < 1µA Supply voltage: –– VDDIO: 1.2 … 3.6V –– VDD: 1.7 … 3.6V Operating modes: –– Command (manual) –– Background (automatic) –– Standby Interface: –– I2C and SPI (both with optional interrupt) Package dimensions: –– 8-pin LGA –– 2.0mm x 2.5mm x 1.0mm Product Brief Pressure Sensor for Mobile Devices Digital Barometric Air Pressure Sensor Functional Block Diagram Temperature Sensor MUX Digital Signal Processing ADC Calibration Coefficients Capacitive Pressure Sensor Digital Core Digital Interface Memory Interface Voltage Regulators I2C/SPI VDDIO FIFO VDD Application Circuit Example (in I2C configuration) Processor R I2C Serial Interface VDDIO SDI SDA SCK SCK Interrupt (optional) INT N.C. SDO VDDIO Pressure Sensor CSB GND 1.2 … 3.6V C GND VDD 1.7 … 3.6V C Pin Configuration (Top View) VDD 8 1 GND Pin Name Function 1 GND Ground 2 CSB Chip Select SDI Serial Data In GND 7 2 CSB 3 4 SCK Serial Clock VDDIO 6 3 SDI 5 SDO Serial Data Out 6 VDDIO Digital Interface Supply 7 GND Ground 8 VDD Analog Supply SDO 5 4 SCK Vent hole Published by Infineon Technologies AG 85579 Neubiberg, Germany © 2015 Infineon Technologies AG. All Rights Reserved. Visit us: www.infineon.com Order Number: B132-I0080-V1-7600-EU-EC-P Date: 01 / 2015 Attention please! The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/ or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.