Yes it should be possible to use the AFF A220 platform. The ASA uses AFF as the hardware platform. It uses both the A220 and A700 platforms. You can reference TR-4515: ONTAP AFF All SAN Array Systems for additional information.
Also here is a link to the main All SAN Array page. It includes all the documentation links for ASA AFF and a hands-on lab if you would like to try it out.
With that being said, I am not sure if this requires a specific license from NetApp to be able to use the ASA feature. I would recommend talking to a NetApp Account rep for additional information on the AFF ASA systems.