Evaluation Board User Guide

UG-317

One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluation Board for the ADM2682E/ADM2687E 5 kV rms Signal and

Power Isolated RS-485 Transceivers with ±15 kV ESD Protection

FEATURES

5 kV rms power and signal isolated RS-485/RS-422 transceiver

Convenient connections for power and signal through screw

terminal blocks

Configurable as half duplex or full duplex

5 V or 3.3 V operation

Easily configurable through jumper connections

Test points for measuring all signals

Layout optimized for emissions according to the AN-0971

Application Note

EVALUATION KIT CONTENTS

EVAL-ADM2682EEBZ or EVAL-ADM2687EEBZ

GENERAL DESCRIPTION

The ADM2682E/ADM2687E evaluation board can be used for

easy evaluation of the ADM2682E and ADM2687E power and

signal isolated RS-485 transceivers. Screw terminal blocks provide

convenient connections for the power and signal connections.

The evaluation board is easily configured through jumper

connections. The board can be used in half-duplex or full-

duplex configurations and has a 120 Ω termination resistor

fitted on the receiver input. The evaluation board can be used

with either the ADM2682E 16 Mbps part or the ADM2687E

500 kbps part. The driver and receiver are enabled and disabled

by jumper connections. Test points are included on the power

and signal lines on both sides of the isolation barrier.

RADIATED EMISSIONS

The ADM2682E/ADM2687E evaluation board is designed to

reduce emissions generated by the high frequency switching

elements used by the isoPower® technology to transfer power

through its transformer. The layout of the evaluation board

was generated using the guidelines provided in the AN-0971

Application Note, Recommendations for Control of Radiated

Emissions with isoPower Devices.

EVALUATION BOARD

Figure 1.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

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