On Oct 15, 2006, at 7:38 AM, John Francis wrote:

> Please don't fall for the marketing speak.  There aren't 22 bits of
> data to be captured - the device is capturing 12 (or, generously, 15)
> bits of data, and adding 10 (or 7) bits made up from whole cloth.

Last time I was looking at A/Ds (some time ago), converters with a  
higher bit-depth were far more linear than those with lower bit- 
depth, across that lower bit-depth.  For example, a 22-bit A/D would  
be more linear across 12 bits than a 12-bit A/D would be.

Is that going to be the case here?  I know that non-linearity can be  
corrected in software, but nothing's ever as good as having decent  
raw data to start with.

- Dave



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