Perhaps the THS1215 will fit your needs - it is differential, 5MSPS to 15MSPS, 3.3V supply with a 2V reference and an ENOB of >10.7bits @3.58MHz.
The footprint is a 28TSSOP, which is a little bigger than you wanted (63mm^2).
Perhaps the THS1215 will fit your needs - it is differential, 5MSPS to 15MSPS, 3.3V supply with a 2V reference and an ENOB of >10.7bits @3.58MHz.
The footprint is a 28TSSOP, which is a little bigger than you wanted (63mm^2).