BMP390 oversampling rate and resolution

Hello, Guys

In BMP390 datasheet states that setting the double sampling frequency of pressure will increase 1 [bit] of the resolution (Shown below)

But in the document from Silicon Labs "IMPROVING ADC RESOLUTION BY OVERSAMPLING AND AVERAGING"

It said that the sampling frequency must be multiplied by 4 to acheive extra 1 [bit] resolution

I'm carious about is there a bridge to connect these equations or they are just two different technique?

Best Regards,

Act

Best reply by BSTRobin

Hi Act,

BMP390 has not disclosed its technical implementation, so we cannot compare the formula you mentioned.

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