Other Parts Discussed in Thread: TIDA-01028, TIDA-01022, ADC12DJ5200RF
I am planning to design a 20GSPS high speed osciloscope using 4 interleaving ADC12DJ3200. In TIDA-01028 user guide,Figures 31 and 32 show the ADC performance with IL spur and without IL spur.I hope to achieve the performance of Figure 32.Here I have two questions:
(1) what calibration has been performed to remove the IL spur?
(2) Does calibration need to be done only once, or do it need to be calibrated every power on cycles?
Thanks a lot!