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Anyone has any experience with ADXL320 from analog devics? I want to measure acceleration but not understanding how am suppose to do so with this chip.
What you have to measure is the output voltage:
for 0g the output is ≈1.5V
and the sensitivity for each axis is ≈175mV/g ..
(see picture below) ..
For example, if you measure 1.675V the acceleration os 1g, if you measure 1.325V the acceleration is -1g ..
That's theory ..
In practice you will need to add output LPF (low pass filter) which can be build around only one capacitor (see data sheet for more details) and take voltage samples as fast as required ..
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