PXLS82433AESR2

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Motion Sensors, like Accelerometers, play a key role in modern devices. The PXLS82433AESR2 is one type of such sensor. It is a 3-axis accelerometer with a programmable range from ±2 g to ±16 g and a selectable bandwidth of 64 Hz or 1 kHz. The digital output format of the PXLS82433AESR2 is 16 bit pulse-width modulation (PWM) via a user-defined address.

The PXLS82433AESR2 can measure the acceleration along any of the three axes simultaneously. It can also detect the speed and travel direction of an object, and has an integrated temperature sensor that can measure the ambient temperature in the device. The PXLS82433AESR2 is well suited for applications in industrial and consumer electronics where motion sensing is needed. The most common applications are automotive and aerospace applications, as well as consumer hand-held devices.

The PXLS82433AESR2 is based on a MEMS die fabricated using a CMOS process. The MEMS die consists of a silicon diaphragm connected to four electrodes on the top side of the die. The bottom side contains two additional electrodes. A single membrane in the centre of the die acts as a proof-mass, which is suspended above a set of comb fingers that generate electrostatic force when current is applied. When the proof mass is disturbed by external acceleration, the electrical field between the upper and lower electrodes changes, resulting in an electrical signal that is proportional to the acceleration.

The electrical signals generated by the PXLS82433AESR2 are converted to digital signals by a 16-bit analog-to-digital converter (ADC) and then output in PWM format via the user-defined address. The speed and direction of an object can also be measured by the PXLS82433AESR2 by integrating the output over time. The integrated temperature sensor is used to compensate for errors due to temperature changes.

In conclusion, the PXLS82433AESR2 is a 3-axis accelerometer with a programmable range and selectable bandwidth. It can measure the acceleration along any of the three axes, as well as the speed and travel direction of an object. It is well suited for applications in industrial and consumer electronics where motion sensing is needed, and its integrated temperature sensor is used to compensate for errors due to temperature changes.

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