I have been found “Not Guilty”of the DUI charge.  Do I still have to attend the ADOT hearing?

Yes.  The criminal trial and the administrative hearing are separate and distinct proceedings. If you wish to contest the suspension/revocation of your driver license, you must appear at the hearing before the ALJ.  If you fail to appear, you may lose the case by default.

I have a trial pending in a criminal court for this DUI charge.  Is this the same as the ADOT hearing?

No.  The administrative hearing at the Executive Hearing Office is an administrative  proceeding concerning the suspension/revocation of your driver license or driving privilege.  It does not determine whether you are guilty of a criminal act such as Driving Under the Influence (DUI).