MMA7331LCR1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Analog
Axis:	X, Y, Z
Acceleration Range:	±4g, 9g
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
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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Motion sensors are used to detect the speed and direction of objects. One common type of motion sensor is an accelerometer. The MMA7331LCR1 accelerometer is a three-axis, micro-machined accelerometer designed to measure acceleration in the range of ±1.5g. It has an adjustable full-scale range and is housed in a miniature, 4-pin leaded package, making it ideal for applications with space constraints.This accelerometer has been designed for use in mobile phones, tablets, vehicle navigation devices, game controllers, aircraft cockpits, and machinery control. It can be used to measure acceleration in multiple directions (x, y, and/or z axis) and can be used for a variety of sensing applications.The MMA7331LCR1 accelerometer is based on the piezoresistive sensing principle. Piezoresisitive sensing or strain gauge sensing is a common type of motion sensing technology and works by measuring changes in electrical resistance due to strain or pressure on a resistive element. In this case, a deflection in the resistive element caused by acceleration in the x, y, and/or z directions is detected and converted into an electrical output signal.The MMA7331LCR1 accelerometer has an adjustable full-scale range (±1.5g, ±3g, or ±6g) which allows the user to select the most suitable range for their application. It also contains embedded digital features such as power-on reset, sleep mode, and a user-programmable interrupt generator.The accelerometer is powered by a single 2.7V to 3.3V power supply and operates over a wide temperature range of -40℃ to +85℃. It is also highly sensitive and has a low noise density of 10μg/Hz-1/2. The low noise level makes the device suitable for precision accelerometer applications.In summary, the MMA7331LCR1 accelerometer is a precision 3-axis accelerometer with low noise characteristics and a wide temperature range. It is highly sensitive and has an adjustable full-scale range, making it suitable for applications with tight space requirements. Its digital features provide robust operation and make it easy to integrate into existing systems.

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