Prerequisites
What you need, depends on what you are trying to do. As a minimum, you need to start out with:
Hardware prerequisites
The DC2677A evaluation board: DC2677A
An FPGA carrier platform: Cyclone V SoC Development Kit
Power supply: +16V/+18V and -16V/-18V for DC2677A
Power supply: 12V for carrier board
An SD card with at least 16GB of memory; see Kuiper Linux
USB cable (Male Mini-B port for Cyclone V SoC Development Kit and Male A port for PC)
Software prerequisites
Libiio — IIO library for interfacing with the LTC235x driver
Note
ADI does not offer FPGA carrier platforms for sale or loan; getting one yourself is the normal part of development or evaluation.