Freescale Xtrinsic MMA8491Q 3-Axis Accelerometer
Freescale Xtrinsic MMA8491Q 3-Axis Accelerometer is an ultra-low-power tilt sensor that enables smart meters, home appliances, asset tracking applications and remote controls through integrated tilt algorithms and auto-on/auto-sleep energy-efficient operation housed in a specialized industrial package. Freescale Xtrinsic MMA8491Q accelerometer is simple, yet robust with reduced system and implementation cost for reduced development time. Its unique single sample and hold measurement method allows for ease of use. Software algorithm development is not required since the internal degree tilt calculation and results are provided by the CMOS I/O.
Xtrinsic MMA8491Q accelerometer operates with reduced power consumption by intelligently determining when the application should operate at a low-power mode or shut off, prolonging battery life. The tilt detection is used to enable/disable host systems or trigger actions, which reduces duty cycles and saves power. Setup is not required since the auto-on provides a short wait to the first data out, reducing average power consumption to less than one micro amp. Without software load on the core system, more sleep time is possible on the host, which also saves power.
- Extreme low power, 400 nA per Hz
- Ultra-fast data output time, ~700 μs
- 1.95V to 3.6V VDD supply range
- 3 mm x 3 mm, 0.65 mm pitch with visual solder joint inspection
- ±8g full-scale range
- 14-bit digital output, 1 mg/LSB sensitivity
- Output Data Rate (ODR), implementation based from < 1 Hz to 800 Hz
- I²C digital interface
- 3-axis, 45° tilt outputs
- Smart meters
- Home appliances
- Asset tracking applications
- Remote controls