Link provided is not the manufacturer; It is the researcher link group who developed the idea of FPTA. Please let me know who is the supplier and manufacturer of FPTA device.
Why not send an e-mail to one or more of the people doing research? That sort of thing actually has been known to work. They might point you in the right direction.
Combining the info given in the link shown by ads-ee with common sense should answer most of your questions. It's an experimental analog ASIC designed in the research project, not a retail product. If you are doing research on a releated topic, the electronic vision(s) guys may or may be not able to provide you with a sample.