MMA7361 (MMA7260)

This sensor can measure static (earth gravity) or dynamic acceleration in all three axis. Application of the sensor is in various fields and many applications can be developed using it. The accelerometer measures level of acceleration where it is mounted, enables us to measure acceleration/deceleration of an object, or tilt of a platform with respected to earth axis.

Further, the sensor provides 0G output which detect linear free fall. Technically, MMA7361LC is a low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a 1-pole low pass filter, temperature compensation, self test, 0g-Detect which detects linear freefall, and g-Select which allows for the selection between 2 sensitivities. Zero-g offset and sensitivity are factory set and require no external devices. The MMA7361LC includes a Sleep Mode that makes it ideal for handheld battery powered electronics. The module can be directly powered with a 5V dc supply. Note that it can also be directly powered from any 3.3V ‘clean’ dc supply.

MMA7361 Features

• Simple to use
• Analog output for each axis
• +5V operation @1ma current
• High Sensitivity (800mV/g @ 1.5g)
• Selectable Sensitivity (+- 1.5g, +- 6g)
• 0g detect for free fall detection
• Robust design, high shock survivability
• Low Cost

MMA7361 Applications

• 3D Gaming: Tilt and Motion Sensing, Event Recorder
• HDD MP3 Player: Freefall Detection
• Laptop PC: Freefall Detection, Anti-Theft
• Cell Phone: Image Stability, Text Scroll, Motion Dialing, E-Compass
• Pedometer: Motion Sensing / PDA: Text Scroll
• Navigation and Dead Reckoning: E-Compass Tilt Compensation
• Robotics: Motion Sensing