DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
Bosch Sensortec is the market leader in barometric pressure sensors with more than 1 billion shipped products. The BMP380 is a very small, low-power and low-noise 24 bit absolute barometric pressure sensor. BMP380 is especially designed and ideally suited for a wide range of altitude tracking applications. This new BMP380 sensor offers outstanding design flexibility, providing a single package solution that can be easily integrated into a multitude of existing and upcoming devices such as smartphones, GPS modules, wearables and drones. The sensor is more accurate than its predecessors, covering a wide measurement range from 300 hPA to 1250 hPa. This new barometric pressure sensor exhibits an attractive price- performance ratio coupled with low power consumption. It is available in a compact 10-in 2.0 x 2.0 x 0.75 mm³ LGA package with metal lid. SENSOR FEATURES Due to the built-in hardware synchronization of the pressure sensor data and its ability to synchronize data from external devices such as acceleration sensors, the BMP380 is ideally suited for fitness and navigation applications which require highly accurate, low power and low latency sensor data fusion. The new interrupt functionality provide simple access to data and storage. Examples of interrupts than can be issue in a power efficient manner without using software algorithms include: Data ready Interrupt, watermark interrupt (on byte level) or FIFO full Interrupt. BMP380 also includes a new FIFO functionality. This greatly improves ease of use while helping to reduce power consump- tion of the overall device system during full operation. The integrated 512 byte FIFO buffer supports low power applications and prevents data loss in non-real-time systems. TECHNICAL SPECIFICATIONS BMP380 Technical data Package dimensions 10-pin LGA with metal lid 2.0 x 2.0 x 0.75 mm³ Operating range (full accuracy) Pressure: 300 … 1250 hPa Supply voltage VDDIO Supply voltage VDD 1.2 V … 3.6 V 1.65 V … 3.6 V Interface I²C and SPI Average typical current consumption (1 Hz data rate) 3.4 A @ 1 Hz Absolute accuracy P=300 ...1100 hPa (T=0 ... 65 °C) ±0.50 hPa Relative accuracy Pressure (typ.) p=900…1100 hPa (T=25 … 40 °C) ±0.06 hPa (equivalent to ±50 cm) Noise in pressure lowest bandwidth, highest resolution 0.03 Pa Temperature coefficient offset (25 … 40 °C @ 900 Pa) ± 0.75 Pa/K (equivalent to ± 8.4 cm/K) Long-term stability (12 months) ±0.33 hPa Solder drift <±0.5 hPa Maximum sampling rate 200 Hz Bosch Sensortec BMP380 Digital, barometric pressure sensor BMP380 TARGET APPLICATIONS Altitude stabilization in drones Improve calorie expenditure measurement accuracy in wearables and mobile devices Unprecedented precision to outdoor/indoor navigation and localization applications Enhancing GPS accuracy outdoors
Bosch Sensortec | BMP380 Data & Specification are preliminary and subject to change without notice | | Bosch Sensortec GmbH reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. BOSCH and the symbols are registered trademarks of Robert Bosch GmbH, Germany. 2 | 2 Doc.-Number: BST-BMP380-FL000-01 / Version_1.1_082018 TECHNICAL SPECIFICATIONS The sensor module is housed in an extremely compact 8-pin metal-lid LGA package with a footprint of only 2.0 x 2.0 and 0.75 package height. Its small dimensions and its lower power consumption of 2.74 A @ 1Hz allow the implementation in battery driven devices. The emerging applications of indoor navigation/localization as well as altitude stabilization in drones require a high relative accuracy and a low TCO at the same time. The BMP380 is perfectly suitable for applications like floor level detection as well as improved calorie expenditure measurement accuracy in wearables and mobile devices since the sensor features excellent relative accuracy of ±0.06 hPa which is equivalent to ±50 cm difference in altitude, and an offset temperature coefficient (TCO) of only 1.0 Pa/K (equivalent to 8.4 Pa/K). It is the successor of the widely implemented BMP280 and achieves high performance in all applications requiring a precise pressure measurement. At the same time BMP380 features more application flexibility, new filter modes besides the shrinkage of the footprint by 20 % with respect to BMP280. SENSOR OPERATION The BMP380 features I²C and SPI (3-wire/4-wire) digital, serial interface. The sensor can be operated in three power modes: The sleep mode, the normal mode and the forced mode. In sleep mode, no measurements are performed. Normal mode comprises an automated perpetual cycling between an active measurement period and an inactive standby period. In forced mode, a single measurement is performed. When the measurement is finished, the sensor returns to sleep mode. A set of oversampling settings is available ranging from ultra-low power to highest resolution setting in order to adapt the sensor to the target application. The settings are predefined combi- nations of pressure measurement oversampling and temper- ature measurement oversampling. Pressure and temperature measurement oversampling can be selected independently from 0 to 32 times oversampling: Temperature measurement Ultra-low power Low power Standard resolution High resolution Ultra-high resolution Highest resolution BMP380 is equipped with a built-in IIR filter in order to minimize short-term disturbances in the output data caused by the slam- ming of a door or window. The filter coefficient ranges from 0 (off) to 128. SYSTEM COMPATIBILITY The BMP380 has been designed for best possible fit into modern mobile consumer electronics devices. Besides the ultra- small footprint and very low power consumption, the BMP380 has very wide ranges for VDD and VDDIO supply voltages. Headquarters Bosch Sensortec GmbH Gerhard-Kindler-Strasse 9
72770 Reutlingen · Germany
Telephone +49 7121 3535 900 Fax +49 7121 3535 909 www.bosch-sensortec.com Pin Pin Name Description