I am looking for an FPGA board that has at least 4 ADCs on it, or an FPGA board and a separate ADC board that can be connected. General requirements: 1) The FPGA board must use a Xilinx series 7 so that Vivado can be used as the development environement. 2) The ADCs don't need to be very fast, 100KSPS or 50KSPS is good enough with at least 16 bits of resolution. A key requirement is that the data acquisition from the ADCs must be simultaneous (that's why we believe we need an FPGA). Do you have any suggestions for Digilent products or Digitent plus Analog Devices products that will meet this need?