This is a tough question for me, but I'm going to do my best to point you in the right direction. The lens you have described is most suitable for the Sony Nex-E Mount with a Metabones Minolta MD Lens to Sony E-Mount T Adapter goo.gl/ouvTVk. But it appears as though you can use it on the A mount with the Fotodiox Mount Adapter goo.gl/EcgX7j.
Read up on these adapters for yourself. I can't guarantee they will work, but after looking closely, it is worth pursuing. If you go with the fotodiox adapter, you will lose all auto functions.
Here is another helpful article, http://www.rokkorfiles.com/Lens%20History.html