Acceleration sensor: BMA422
Including Android™ features. Low power.
BMA422
Accelerometer
The triaxial BMA422 is an ultra-small, low-g acceleration sensor with digital interfaces, especially aiming for low-power consumer electronics applications. Accordingly, the BMA422 accelerator is the perfect match for various use cases such as gesture recognition, advanced power management or shock and freefall detection. BMA422 is able to detect significant motion, tilt and enables plug ’n’ play step counting in smartphones and wearable devices. Furthermore, the BMA422 is optimized to fulfill Android M low-power accelerometer requirements.
Significant motion
Power management
Gesture recognition
Easy-to-integrate due to small size
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Digital resolution
|
Technical data
12 bit
|
|
Parameter
Resolution
(in ±2g range) |
Technical data
0.98 mg
|
|
Parameter
Measurement ranges
(programmable) |
Technical data
±2 g, ±4 g, ±8 g, ±16 g
|
|
Parameter
Sensitivity (calibrated)
|
Technical data
±2 g: 1024 LSB/g
±4 g: 512 LSB/g ±8 g: 256 LSB/g ±16 g: 128 LSB/g |
|
Parameter
Zero-g offset (typ., over life-time)
|
Technical data
±80 mg
|
|
Parameter
Noise density (typ.)
|
Technical data
140 µg/vHz
|
|
Parameter
Bandwidths (programmable)
|
Technical data
1600 Hz ... 1.5 Hz
|
|
Parameter
Digital inputs/outputs
|
Technical data
SPI & I2C,
2x digital interrupt pins |
|
Parameter
Supply voltage (VDD)
|
Technical data
1.62 … 3.6 V
|
|
Parameter
I/0 supply voltage (VDDIO)
|
Technical data
1.2 … 3.6 V
|
|
Parameter
Temperature range
|
Technical data
-40 … +85°C
|
|
Parameter
Current consumption
- full operation - low-power mode |
Technical data
150 μA 12 μA (at 50Hz data rate) |
|
Parameter
FIFO data buffer
|
Technical data
1 kB
|
|
Parameter
LGA package
|
Technical data
2 x 2 x 0.95 mm³
|
|
Parameter
Shock resistance
|
Technical data
10,000 g x 200 µs
|
