This article discusses issues which must be considered when choosing any analog integrated circuit (IC). There are many types of analog IC, with widely. Aspencore network. ... When choosing ICs (or, ...

Fundamentals of analog filter design and linear circuits are covered in a book and kit of parts that are available on EIM Tech's site after a successful ~$108,000 Kickstarter campaign.

It’s highly recommended to place and route analog and digital circuits separately and avoid any high-speed digital routing in the analog section. There should be a dedicated analog GND plane.