GENERAL DESCRIPTION
The BMA421 is an ultra-small, triaxial, low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronics applications. Featuring 12 bit digital resolution and embedded intelligence, the BMA421 allows low-noise measurement of accelerations in 3 perpendicular axes and thus senses any-motion/no-motion and enables plug ’n’ play step counting in smart phones and wearable devices. Furthermore the device is optimized to fulfill low power step counter requirements.

BMA421 TARGET APPLICATIONS
► Step-counting in smartphones
► Step-counting in wearable devices
► Low power user interaction
► Gesture recognition
► Advanced power management for mobile devices
► Tilt compensation for electronic compass