Quad-Channel Isolator with

Integrated DC-to-DC Converter

Preliminary Technical Data

ADuM5400

Rev. P

rA

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FEATURES

isoPower integrated, isolated dc-to-dc converter

Regulated 3.3 V or 5 V output

500 mW output power

Quad dc-to-25 Mbps (NRZ) signal isolation channels

Schmitt trigger inputs

16-lead SOIC package with >8 mm creepage

High temperature operation: 105°C

High common-mode transient immunity: >25 kV/μs

Safety and regulatory approvals (pending)

UL recognition

2500 V rms for 1 minute per UL1577

CSA Component Acceptance Notice #5A

VDE certificate of conformity

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

APPLICATIONS

RS-232/RS-422/RS-485 transceiver

Industrial field bus isolation

Power supply startup bias and gate drive

Isolated sensor interface

Industrial PLC

GENERAL DESCRIPTION

isoPower™, an integrated, isolated dc-to-dc converter. Based on

the Analog Devices, Inc., iCoupler® technology, the dc-to-dc

converter provides up to 500 mW of regulated, isolated power at

either 5.0 V from a 5.0 V input supply or 3.3 V from a 3.3 V supply.

This eliminates the need for a separate, isolated dc-to-dc

converter in low power, isolated designs. The iCoupler chip scale

transformer technology is used

to isolate the logic signals and the magnetic components of the

dc-to-dc converter. The result is a small form factor, total isolation

solution.

The ADuM5400 isolator provides four independent isolation

channels in a variety of channel configurations and data rates

(see the Ordering Guide for more information).

patents pending.

FUNCTIONAL BLOCK DIAGRAMS

Figure 1.

Figure 2. ADuM5400