产品概览
BMA250E from Bosch Sensortec is an enhanced 3-axis accelerometer with +/-2/4/8/16g ranges. 10-bit resolution. I2C/SPI interface. Ultra-small LGA-12 (2x2mm). Low power: 130uA active. Enhanced features vs BMA250.
工作原理
MEMS capacitive accelerometer with 10-bit ADC per axis. Selectable range and bandwidth. Built-in FIFO for data buffering. Interrupt functions: data-ready, orientation, tap/double-tap detection. Enhanced offset and sensitivity stability vs BMA250.
Pin Description
| 针脚 | 名称 | 功能 |
|---|---|---|
| 1 | VDDIO | I/O supply 1.2-3.6V |
| 4-5 | SDA/SCL | I2C |
| 6-7 | INT1/INT2 | Interrupt outputs |
| 8 | VDD | Analog supply 1.62-3.6V |
应用
- Mobile device motion sensing
- Screen rotation
- Gaming controllers
- Pedometer/steps counting
Alternative Models
| 制造商 | 部件编号 | 说明 |
|---|---|---|
| 博世 | BMA250 | Original version |
| 博世 | BMA456 | Next-gen accelerometer |