MMA7260Q

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Analog
Axis:	X, Y, Z
Acceleration Range:	±1.5g, 2g, 4g, 6g
Sensitivity (LSB/g):	--
Sensitivity (mV/g):	800 (±1.5g) ~ 200 (±6g)
Bandwidth:	350Hz (X,Y), 150Hz (Z)
Output Type:	Analog Voltage
Voltage - Supply:	2.2 V ~ 3.6 V
Features:	Selectable Scale, Sleep Mode
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	16-LQFN Exposed Pad
Supplier Device Package:	16-QFN (6x6)

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：MMA7260Q is a three-axes low-g acceleration sensor from Freescale Semiconductor. It provides a measurement range of ±1.5g for X and Y axes, and ±6g for Z axis. It features low-power operation, low-offset error, low-noise performance, and built-in temperature sensor. This device is exceptionally useful for mobile device applications such as game controllers, kids’ toys, personal navigation, and digital still cameras.

Introduction

The MMA7260Q is designed for mobile device applications such as game controllers, kids’ toys, personal navigation, and digital still cameras. Thanks to its low power consumption and low-noise performance, the MMA7260Q is suited to be placed in a single space-conscious applications, as opposed to a more general-purpose accelerometer, which requires more board space. The MMA7260Q accelerometer also has a built-in temperature sensor to measure temperature variations and can be read out through an I2C interface.

Applications

The MMA7260Q accelerometer is most often used in gaming devices like Xbox and PlayStation motion controllers as well as in the personal navigation devices like pedometers, altimeters, and digital cameras. It is also used in robotics, motion-activated switches, and medical sensors.Various gaming controllers use the MMA7260Q to detect movements and interact with games. Self-contained toys, like robotic animals, are also equipped with the MMA7260Q to detect any movement within range. Many medical applications also rely on the MMA7260Q to detect movement, like monitoring the heart rate.

Working Principle

The MMA7260Q is capable of detecting acceleration over three axes (X, Y, Z) with an acceleration range of +/-1.5g for X and Y axes and +/-6g for Z axis. The MMA7260Q has two main components, which are part of the same electronic package: 1. A MEMS (MicroElectricalMechanical System) AccelerometerThe MEMS accelerometer consists of a silicon-based cantilever that is deflected when an external force is applied (such as static gravity or dynamic acceleration). The MEMS accelerometer in the MMA7260Q is capable of detecting movement in three axes. 2. An Integrated Circuit (IC)The Integrated Circuit is responsible for converting the mechanical movement detected by the MEMS accelerometer into a series of digital signals that can be read by the host system. The IC in the MMA7260Q is capable of processing the data and communicating it to the host system through an I2C interface.In summary, the MMA7260Q is a low-g three-axes acceleration sensor that is most often used for motion detection in gaming controllers, personal navigation devices, digital cameras and robotics. It features low power consumption, low offset error, and low-noise performance. Its integrated IC converts the mechanical movement detected by the MEMS accelerometer into digital signals that can be read by the host system.

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