The plots below show the result of applying ADL to the output of
high-speed 16-bit ADCs mounted on reference boards available from each of
the ADC manufacturers. The boards were operated at a sampling rate of 130
MSPS, and the plots show two-tone tests in the 5th Nyquist zone before
(left) and after (right) being corrected by ADL. In this Nyquist zone,
distortion is dominated by low order harmonic distortion, (HD2 and HD3).
The plots show that regardless of the ADC model, the 2:nd and 3:rd order
distortion spurs are attenuated to a level close to -100 dBFS. This means
that the usable bandwidth is extended up to the 5th Nyquist Zone.
