In the datasheet the graph for the INL at 15 MSPS is a higher than the graph
for 30MSPS, although the ADC is not specified at 30 MSPS. Maybe this is an
error and you mean a lower MSPS?
The 30 MHz plot is taken at the 10-bit level, so multiply it by 64 to compare
directly with the plot at 15 MHz. The 30 MHz performance is borderline, and is
only intended for low quality applications (such as the preview mode on a