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ADXL345 Anti-Aliasing Filter specs

Question asked by psh1106 on Apr 1, 2013
Latest reply on Apr 2, 2013 by neilzhao

Hello,

 

I am trying to work out what type of analog (anti-aliasing) filter the ADXL345 uses to acquire the signal before the A/D stage. I have already found out that it's a 2 pole low pass but I don't know what type (Bessel?) it is and if the cut-off is based on the ODR or whether it is universally set to 1600 Hz. For my application I would like to avoid any kind of alias frequencies so I am looking for the frequency range above which the anti-aliasing filter will ensure 100x attenuation.

 

Thanks,

 

P

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