MMA7330LR2

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Analog
Axis:	X, Y, Z
Acceleration Range:	±4g, 12g
Sensitivity (LSB/g):	--
Sensitivity (mV/g):	308 (±4g) ~ 83.6 (±9g)
Bandwidth:	400Hz (X,Y), 300Hz (Z)
Output Type:	Analog Voltage
Voltage - Supply:	2.2 V ~ 3.6 V
Features:	Selectable Scale, Sleep Mode
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	14-TFLGA
Supplier Device Package:	14-LGA (3x5)

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Introduction

MMA7330LR2 is an expensive low power three-axis accelerometer. It is available in both a compact and cost-effective surface mount package that is suitable for operation in all consumer, industrial, and automotive environments. The MMA7330LR2 is based on a sophisticated micro-mechanical sensing mechanism and is geared towards low power consumption applications such as automotive, portable medical, precision measuring instruments, and consumer electronics. It is capable of detecting changes in linear acceleration such as tilt, shock, and vibration which can be used to optimize motion sensing applications.

MMA7330LR2 Application Field

The MMA7330LR2 Accelerometer provides an economical solution for a wide range of motion sensing applications in automotive, consumer, and industrial markets. Its advantages include small package size, low power consumption, wide operating temperature range, wide range of operating voltages, and high accuracy.These features make the MMA7330LR2 suited for applications such as navigation systems in cars, laptops, notebooks, ebook readers, virtual keyboards, touch screens, game controllers, medical instruments, robotics, wearable devices, smartphones, wireless communication devices, surveillance cameras, and sports instruments.

MMA7330LR2 Working Principle

The MMA7330LR2 is a micro-mechanical accelerometer which operates on the principle of capacitive sensing. When the accelerometer is subjected to a linear acceleration (acceleration along the axis specified), the beam exerts a force on the flexure which causes the beam to deflect. When the beam deflects, its capacitance changes, which in turn, affects the output voltage of the accelerometer.The MMA7330LR2 has an sensitivity range of 1.6 mV/g, which allows the accelerometer to measure a wide range of linear accelerations. It also has a very low power consumption of 3.9 mW, which makes it highly suitable for low power applications.

Conclusion

The MMA7330LR2 Accelerometer from Freescale Semiconductor is a highly precise and cost-effective three-axis accelerometer. It is ideally suited for a wide range of motion sensing applications in automotive, consumer, and industrial markets. Its capability of sensing linear acceleration, together with its low power consumption and wide operating temperature range make it a viable solution for various motion sensing applications.

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