Accelerometer BMA456

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The triaxial BMA456 is an ultra-small, low-g high performance accelerometer for low-power, demanding consumer electronics applications. It senses wrist tilt, tab and double tab in wearable devices and facilitates accurate measurements over changing temperature.

High performance

Wearable features included

Thin package

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Easy-to-integrate due to small size

Enhanced speech processing

Continuously usable due to always-on low-power speech processing

Ultra-low power consumption

Technical data

Digital resolution

16 bit

Resolution
(in ±2g range)

0.06 mg

Measurement ranges
(programmable)

±2 g, ±4 g, ±8 g, ±16 g

Sensitivity (calibrated)

±2 g: 16384 LSB/g
±4 g: 8192 LSB/g
±8 g: 4096 LSB/g
±16 g: 2048 LSB/g

Zero-g offset (typ., over life-time)

±20 mg

Noise density (typ.)

120 µg/vHz

Bandwidths (programmable)

1600 Hz ... 1.5 Hz

Digital inputs/outputs

SPI & I2C,
2x digital interrupt pins

Supply voltage (VDD)

1.62 … 3.6 V

I/0 supply voltage (VDDIO)

1.2 … 3.6 V

Temperature range

-40 … +85°C

Current consumption
- full operation
- low-power mode

150 μA
14 μA typ. (at 50 Hz ODR)

FIFO data buffer

1 kB

LGA package

2 x 2 x 0.65 mm³

Shock resistance

10,000 g x 200 µs

Documents

Flyer

BST-BMA456-FL000

Download

Handling & soldering instructions

BST-MAS-HS000

Download

Datasheet

BST-BMA456-DS000

Download

Shuttle board flyer

BST-BMA456-SF000

Download

Shipment & packaging details

BST-BMA456-SP000

Download

Application note for wearables feature set

BST-MAS-AN032

Download

Application note for hearables feature set

BST-BMA456-AN000

Download

Application note for BMA456MM feature set

BST-BMA456-AN001

Download

Application note AN feature set

BST-BMA456-AN002

Download

Application note for tablet feature set

BST-BMA456-AN003

Download

Software

Drivers

BMA456 Sensor API

Drivers

Applications and solutions

Hearables

Sensor technology enhances the capabilities of hearables and provides manufacturers with innovative features including gesture and context recognition, speech processing and voice enhancement, as well as precise head orientation tracking.

Learn more about Hearables applications

Wearables

Smartwatches, wristbands and smart clothes: whether supporting your fitness through calorie counting or helping you orient yourself through navigation, our accurate and ultra-low power sensing solutions turn a regular wearable into your daily companion!

Learn more about Wearables applications

Other Accelerometers

BMA422

The BMA422 is an ultra-small accelerometer with digital interfaces, 12 bit digital resolution and embedded intelligence, aiming for low-power consumer electronics applications. It allows for measurements in 3 perpendicular axes and fulfills Android™ M low power accelerometer requirements.

More information

BMA400

The BMA400 is an ultra-low power acceleration sensor for wearables and smart home applications that need a long-lasting battery lifetime. The BMA400 draws ten times less current than existing accelerometers while delivering solid high performance.

More information

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