This is a technical note on the evaluation board for the AD7472, which introduces the board's features and characteristics
This document is a technical note for the Analog Devices EVAL-AD7472CB evaluation board. It describes the board's features, which include full functionality for the AD7472 12-bit successive-approximation A/D converter, on-board analog buffering, and various link options for interfacing with control boards or operating as a standalone unit.
The guide details power supply requirements, including connections for VDD, AGND, VSS, VDRIVE, and DGND. It explains the analog input section supporting both unipolar (0V to 2.5V) and bipolar signals via specific sockets and bias-up circuits. A significant portion of the text is dedicated to explaining eleven link options (LK1-LK11) that configure power sources, clock inputs, control signals, and voltage levels for different operating modes.
The board operates from a single supply ranging from 2.7 V to 5.25 V.
The input impedance of the bias-up circuit is 50 W.
There are 11 link options that must be set before using the evaluation board.