Evaluation Board User Guide
UG-124
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
ADM3251E Evaluation Kit (EVAL-ADM3251EEB1Z) with Reduced EMI
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
FEATURES
2.5 kV fully isolated (power and data) RS-232 transceiver
Convenient connections for power and signal through screw
terminal blocks
5 V operation
Easily configurable through jumper connections
Test points for measuring all signals
All external components required for correct operation
EVALUATION KIT CONTENTS
ADM3251E evaluation board
2 ADM3251E samples
GENERAL DESCRIPTION
The ADM3251E evaluation board can be used for easy evaluation
of the ADM3251E power and signal isolated RS-232 transceiver.
Screw terminal blocks provide convenient connections for the
power and signal connections. Test points are included on the
power and signal lines on both sides of the isolation barrier.
RADIATED EMISSIONS
The ADM3251E 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.
Guidelines mentioned in the AN-0971 Application Note,
Recommendations for Control of Radiated Emissions with isoPower
Devices, were used to generate the layout. Guide guarding and a
buried capacitive layer were implemented. The emissions of the
evaluation board were measured by an independent test facility
and passed the EN55022 (2001) Class B emissions standard.
DIGITAL PICTURE OF EVALUATION BOARD
Figure 1.
