BMA280 Description

The BMA280 is a triaxial, low-g acceleration sensor with digital output for consumer applications. It allows measurements of acceleration in three perpendicular axes. An evaluation circuitry (ASIC) converts the output of a micromechanical acceleration-sensing structure (MEMS) that works according to the differential capacitance principle. Package and interfaces of the BMA280 have been defined to match a multitude of hardware requirements. Since the sensor features an ultra-small footprint and a flat package it is ingeniously suited for mobile applications.

The BMA280 offers a variable VoDIo voltage range from 1.2V to 3.6V and can be programmed to optimize functionality, performance and power consumption in customer specific applications. In addition it features an on-chip interrupt controller enabling motion-based applications without use of a microcontroller. The BMA280 senses tilt, motion, inactivity and shock vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.

BMA280 Features

Ultra- Small package

LGA package (12 pins), footprint 2mm x 2mm,

height 0.95mm

Digital interface

SPI (4-wire, 3-wire), IPC, 2 interrupt pins

Voolo voltage range: 1.2V to 3.6V

Programmable functionality

Acceleration ranges +2g/4g/+8g/+16g

Low-pass filter bandwidths 500Hz - <8Hz

up to an max. output data read out of 2kHz (unfilte

On-chip FIFO

Integrated FIFO with a depth of 32 frames

On-chip interrupt controller

BMA280 Applications

Display profile switching

Menu scrolling, tap / double tap sensing

Gaming

Pedometer / step counting

Free-fall detection

E-compass tilt compensation

Drop detection for warranty logging

Advanced system power management for mobile applications