Evaluation Board User Guide

UG-534

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

i

Coupler ADuM3190 Isolated Error Amplifier Evaluation Board

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 8

FEATURES

Isolated error amplifier

Stable over time and temperature

0.5% initial accuracy

1% accuracy over the full temperature range

For Type II or Type III compensation networks

Reference voltage: 1.225 V

Low power operation: <7 mA total

Wide supply voltage range

Bandwidth: 400 kHz

Isolation voltage: 2.5 kV rms

Wide temperature range

−40°C to +125°C ambient operation

150°C maximum junction temperature

GENERAL DESCRIPTION

The EVAL-ADuM3190EBZ supports the ADuM3190

isolated

error amplifier based on Analog Devices, Inc., iCoupler®

technology. The ADuM3190 is ideal for linear feedback

power supplies with primary side controllers enabling

improvements in transient response, power density, and

stability as compared to commonly used optocoupler and

shunt regulator solutions. Included in the ADuM3190 is a

wideband operational amplifier that can be used to set up

a variety of commonly used power supply loop compensa-

tion techniques. The ADuM3190 is fast enough to allow a

feedback loop to react to fast transient conditions and over

current conditions. Also included is a high accuracy 1.225 V

reference to compare with the supply output set point.

Complete specifications for the ADuM3190 are provided in the

ADuM3190 data sheet available from Analog Devices, Inc., and

should be consulted in conjunction with this user guide when

using the evaluation board.

EVALUATION BOARD

Figure 1. EVAL-ADuM3190EBZ