If I´d look for something like this...
* I´d give a list of preferred FPGA manufacturers (are you really free to choose any manufacturer and any FPGA of random complexitiy? What about availability?)
* I´d give ADC specifications, like voltage range, sampling rate, precision...
currently on ebay (this link may time out):
**broken link removed**
Thanks for suggestion. I guess Cmod A7 has USB-UART and USB-JTAG Programming Circuitry bridged on a single micro USB port. Is that right ? but is UART capable to send 100 Kilo Sample Per Second ?