Little PICs with hi-res A-D ?

Me ? A PIC ? You must think I'm going mad !

No, it's for someone else I may work on a project with and he's into
PICs. He wants a little 8 pin jobbie with an onboard A-D. Currently he's
looking at a 16F220 IIRC. That only has an 8 bit A-D.

I reckon we need 12 bits off the top of my head but 16 would be nice.

Any suggestions ? I'm totally unfamiliar with their range and he's off
on dog-sitting holiday for 2 weeks.

Graham