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mpl3115 Oversample and Power vs Resolution

Question asked by ByTheWay on Feb 20, 2014
Latest reply on Feb 25, 2014 by Jose Alberto Reyes Morales

I have an application that is sensitive in both resolution and power consumption.

 

The MPL3115 gives me sufficient resolution at an oversampling ratio of 128x, but the power consumption is too high.  On the other hand, the "highest speed mode" (oversample ratio of 1x) is well within my power budget, but I'm worried the resolution will no longer be sufficient.

 

Unfortunately, the datasheet is silent on these relationships.

 

In the end, of course, I'll have to fine-tune the balance with empirical testing, but I'd like to get a better feel for how this will work before committing to the MPL3115 in my design.

 

Is there any documentation on how the MPL3115 behaves under other oversampling ratios?

 

(p.s. I'll be using both altimeter and barometer modes)

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