Select application notes from Analog Devices are available on the Analog Devices Wiki. Feel free to edit or make additions to these versions.
AN-1119: Printed Circuit Board Layout Guidelines for Step-Down Regulators, Optimizing for Low Noise Design with Dual Channel Switching Controllers
AN-1112: Microphone Specifications Explained
AN-1109: Recommendations for Control of Radiated Emissions with iCoupler Devices
AN-1108: AD9832/AD9835 Programming Examples