With this project I'm aiming to build a data acquisition device with the following rough specs:

• 2 analog channels
• 10-12 bits
• ~8 Msps (perhaps faster at 8 bits, or when running a single channel)
• Coax connectors (SMA or BNC)
• USB 2

My high-level plan is to build this around a Lattice FPGA (so I can use yosys, nextpnr, etc.), a FT232H USB bridge, with something like an AD9204 for the ADC.

I'm not sure what I want from the front-end yet (input impedance, bandwidth, gain etc.) but I'll figure that out as I go.

I'll start by experimenting with breakout boards. I already have these for the FPGA and USB bridge, and I've started work on a custom break-out board for the ADC.

My hope is to eventually use this to upgrade the data acquisition stage of my homebrew SDR receiver. I can also imagine this being useful as a general baseband / IF digitizer for other projects I have in mind.