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Accelerometers track acceleration, which in real life is a change in direction or speed. This can involve jolts and vibrations, abrupt changes in speed like forceful vehicle acceleration or stopping, forces that could mean you’re turning too quickly, or powerful impacts.
There are several automotive applications for the three-axis linear accelerometer, including anti-theft, telematics, entertainment, tilt measurement, inclination measurement, and vehicle navigation.
The Global Automotive three-axis linear accelerometer market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The AIS2IH, three-axis linear accelerometer provides output data rates between 1.6Hz and 1.6kHz, and user-selectable full-scales encompassing 2, 4, 8 and 16g (survivable shock is 10,000g). Overall, there are five modes—one supposedly high-performance and four supposedly low-power—that it can switch between instantly.
In high-performance mode, the long-term sensitivity tolerance is 10%; in other modes, it is 15%. When running in high-performance mode, the embedded digital low-pass and high-pass filters can be configured, and the typical noise density is 90 g/Hz.
A specific internal motion and activity engine is supplied to detect free-fall, wake-up, single/double-tap recognition (configurable), 6D/4D orientation, and activity or inactivity. A 32 level FIFO is provided to aggregate readings without host involvement.
It can be examined inside the finished programme thanks to embedded self-test functionality. Supply voltage (Vdd) can range from 1.62 to 3.6 volts (nominal 3 volts), and the IO has a separate pin that requires 1.62 volts to Vdd plus 100 millivolts. The interface is serial and the user can choose between I2C or SPI.
Operating current in the 1.6Hz low-performance mode at 3V is 670nA and 110A, respectively.
