Pressure range 300 -1100 hPa

The BMP280 is an absolute barometric pressure sensor especially designed for mobile applications. The sensor module is housed in an extremely compact package. Its small dimensions and its low power consumption allow for implementation in battery-powered devices such as mobile phones, GPS modules, or watches.

Like its predecessor, the BMP180, the BMP280 is based on Bosch’s proven piezo-resistive pressure sensor technology, featuring high accuracy and linearity, as well as long-term stability and high EMC robustness. Numerous device operation options offer the highest flexibility to optimize the device regarding power consumption, resolution, and filter performance. A tested set of default settings for example use cases is provided to the developer in order to make design-in as easy as possible.

Applications

- Enhancement of GPS navigation (e.g., time-to-first-fix improvement, dead-reckoning, slope detection)

- Indoor navigation (floor detection, elevator detection)

- Outdoor navigation, leisure, and sports applications

- Weather forecasting

- Health care applications (e.g., spirometry)

- Vertical velocity indication (e.g., rise/sink speed)

 

Operation range (full accuracy) Pressure: 300...1100 hPa Temperature: -40…85°C

Absolute accuracy (Temp. @ 0…+65°C) ~ ±1 hPa

Relative accuracy p = 700…900 hPa (Temp. @ +25…+40°C) ± 0.12 hPa (typical) equivalent to ±1 m

Average current consumption (1 Hz data refresh rate) 2.74 μA, typical (ultra-low power mode)

Average current consumption in sleep mode 0.1 μA

Average measurement time 5.5 msec (ultra-low power preset)

Supply voltage VDDIO 1.2…3.6 V

Supply voltage VDD 1.71…3.6 V

Resolution of data Pressure: 0.01 hPa (< 10 cm) Temperature: 0.01° C

Temperature coefficient offset (+25°â€¦+40°C @ 900 hPa) ± 0.12 hPa (typical) equivalent to ±1 m

Interface I²C and SPI