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| The base of the micromachining technology has proven its capability in more than 1 billion Bosch accelerometers, pressure sensors, and gyroscopes so far. The modular ASIC design and device flexibility allows engineers to react quickly to their changing customer needs and optimization over time. |
| Key Features |
- Switchable g-range and bandwidth
- Low-power consumption
- SPI (3-wire/4-wire) and I2C interfaces
- Programmable interrupt feature for mobile wake-up or free-fall detection
|
- Ultra-low-power self-wake-up mode
- Self-test capability
- LGA package (3 mm x 3 mm x 0.9 mm)
Datasheet |
| The BMA150 senses tilt, motion, shock and vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers. |
| Target Applications |
- Advanced power management for mobile devices
- HDD protection
- Drop detection for warranty logging
- Menu scrolling, tip-tap function
|
- Step-counting
- Display profile switching (portrait/landscape)
- Detection
- Gaming
|
| The BMA150 package and interface have been defined to match a multitude of hardware requirements. Since the sensor has a flat, small footprint package it is attractive for mobile applications. The sensor can be programmed to optimize functionality, performance and power consumption in customer specific applications. |
| Technical Data |
| Sensitivity axes |
x/y/z |
Resolution |
10bit → 4mg (±2g range) |
| Measurement range |
±2g, ±4g, ±8g
(switchable via SPI/I2C) |
Sensitivity (calibrated) |
2g: 256LSB/g
4g: 128LSB/g
8g: 64LSB/g |
| Nonlinearity |
±0.5% FS |
Axes mixing |
2% |
| Zero-g offset (calibrated) |
±60mg |
Zero-g offset temp. drift |
1mg/K |
| Noise |
0.5mg/√Hz |
Digital input / output |
SPI & I2C, Interrupt pin |
| Bandwidth |
25Hz … 1500Hz
(switchable via SPI/I2C) |
Supply voltage |
2.4 … 3.6V, 1.62 … 3.6V
IO |
| Current consumption |
200µA |
Idle current |
1µA |
| Wake-up time |
1ms |
Temperature range |
-40°C … +85°C |
| The BMA150 provides a digital 10bit output signal in SPI or I2C format. Via serial interface command the full measurement range can be chosen to ±2g, ±4g or ±8g. A second-order filter with a pole-frequency of 1500Hz is included to provide preconditioning of the measured acceleration signal. The maximum data conversion rate is 3KHz. |
| Demo Boards and Kits |
| Manufacturer Part Number |
Digi-Key Part Number |
Description |
| BMA150-SHUTL |
828-1009-ND |
BMA150 Daughtercard for DEV KIT |
| BMA150-TRIBOX |
828-1013-ND |
Tribox Demo Board with USB |
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Quick Links:
The BMA150 is an LGA packaged triaxial, programmable low-g acceleration sensor with digital output. Offering many smart functional features and operation across a wide temperature range, the BMA150 is aimed for consumer and industrial market applications. Providing measurement of acceleration across 3 perpendicular axes, the dedicated motion sensing circuitry in the BMA150 enables power efficient interrupt driven software. The differential capacitance principle implemented in Bosch Sensortec's accelerometers provides a robust and lowest power sensing solution to the market.
