Hi Tom
Thank you very much for the answer.
I wouldl ike to doble check.
if the below table works for our input signal condition, Unipolar (0 ~5V) using internal refernce (2.5V).
and if it is same for ADS7263 as well sa ADS8363
http://e2e.ti.com/support/data_converters/precision_data_converters/f/73/t/277352.aspx
Best regards,
Masa Katayama