bmp280 datasheet

Table Of Contents

Bosch

Sensortec | BMP280 Data sheet

3 |

Modifications reserved | Data subject to change without notice

Document number: BST-BMP280-DS001-23 Revision_1.23_11202

General Description

Robert Bosch is the world market leader for pressure sensors in automotive and consumer

applications. Bosch’s proprietary APSM (Advanced Porous Silicon Membrane) MEMS manufacturing

process is fully CMOS compatible and allows a hermetic sealing of the cavity in an all silicon process.

The BMP280 is based on Bosch’s proven Piezo-resistive pressure sensor technology featuring high

EMC robustness, high accuracy and linearity and long term stability.

The BMP280 is an absolute barometric pressure sensor especially designed for mobile applications.

The sensor module is housed in an extremely compact 8-pin metal-lid LGA package with a footprint of

only 2.0 × 2.5 mm

and 0.95 mm package height. Its small dimensions and its low power consumption

of 2.7 µA @1Hz allow the implementation in battery driven devices such as mobile phones, GPS

modules or watches.

As the successor to the widely adopted BMP180, the BMP280 delivers high performance in all

applications that require precise pressure measurement. The BMP280 operates at lower noise,

supports new filter modes and an SPI interface within a footprint 63% smaller than the BMP180.

The emerging applications of indoor navigation, fitness as well as GPS refinement require a high

relative accuracy and a low TCO at the same time. BMP180 and BMP280 are perfectly suitable for

applications like floor detection since both sensors feature excellent relative accuracy is ±0.12 hPa,

which is equivalent to ±1 m difference in altitude. The very low offset temperature coefficient (TCO) of

1.5 Pa/K translates to a temperature drift of only 12.6 cm/K.

Please contact your regional Bosch Sensortec partner for more information about software packages

enhancing the calculation of the altitude given by the BMP280 pressure reading.

Table 1: Comparison between BMP180 and BMP280

Parameter BMP180 BMP280

Footprint 3.6 × 3.8 mm 2.0 × 2.5 mm

Minimum V

1.80 V 1.71 V

Minimum V

DDIO

1.62 V 1.20 V

Current consumption @3 Pa RMS noise 12 µA 2.7 µA

RMS Noise 3 Pa 1.3 Pa

Pressure resolution 1 Pa 0.16 Pa

Temperature resolution 0.1°C 0.01°C

Interfaces I²C I²C & SPI (3 and 4 wire,

mode ‘00’ and ‘11’)

Measurement modes Only P or T, forced P&T, forced or periodic

Measurement rate up to 120 Hz up to 157 Hz

Filter options None Five bandwidths