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GENERAL DESCRIPTION

The ADuM2400/ADuM2401/ADuM24021 are 4-channel digital

isolators based on Analog Devices, Inc., iCoupler? technology.

Combining high speed CMOS and monolithic air core transformer

technology, these isolation components provide outstanding

performance characteristics that are superior to alternatives, such

as optocoupler devices.

By avoiding the use of LEDs and photodiodes, iCoupler devices

remove the design difficulties commonly associated with optocouplers.

The typical optocoupler concerns regarding uncertain

current transfer ratios, nonlinear transfer functions, and tempera

ture and lifetime effects are eliminated with the simple iCoupler

digital interfaces and stable performance characteristics. Furthermore,

iCoupler devices run at one-tenth to one-sixth the power

of optocouplers at comparable signal data rates.

The ADuM2400/ADuM2401/ADuM2402 isolators provide four

independent isolation channels in a variety of channel configurations

and data rates (see the Ordering Guide). The ADuM2400/

ADuM2401/ADuM2402 models operate with the supply voltage

of either side ranging from 2.7 V to 5.5 V, providing compatibility

with lower voltage systems as well as enabling a voltage

translation functionality across the isolation barrier. In addition,

the ADuM2400/ADuM2401/ADuM2402 provide low pulse

width distortion (<2 ns for CRWZ grade) and tight channel-tochannel

matching (<2 ns for CRWZ grade). The ADuM2400/

ADuM2401/ADuM2402 isolators have a patented refresh feature

that ensures dc correctness in the absence of input logic transitions

and during power-up/power-down conditions.

FEATURES

Low power operation

5 V operation

1.0 mA per channel maximum @ 0 Mbps to 2 Mbps

3.5 mA per channel maximum @ 10 Mbps

31 mA per channel maximum @ 90 Mbps

3 V operation

0.7 mA per channel maximum @ 0 Mbps to 2 Mbps

2.1 mA per channel maximum @ 10 Mbps

20 mA per channel maximum @ 90 Mbps

Bidirectional communication

3 V/5 V level translation

High temperature operation: 105°C

High data rate: dc to 90 Mbps (NRZ)

Precise timing characteristics

2 ns maximum pulse width distortion

2 ns maximum channel-to-channel matching

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

Output enable function

16-lead SOIC wide body package version (RW-16)

16-lead SOIC wide body enhanced creepage version (RI-16)

Safety and regulatory approvals (RI-16 package)

UL recognition: 5000 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice 5A

IEC 60601-1: 250 V rms (reinforced)

IEC 60950-1: 400 V rms (reinforced)

VDE Certificate of Conformity

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

VIORM = 846 V peak

APPLICATIONS

General-purpose, high voltage, multichannel isolation

Medical equipment

Motor drives

Power supplies