5 kV RMS Quad-Channel Digital Isolators

ADuM4400/ADuM4401/ADuM4402

FEATURES

Enhanced system-level ESD performance per IEC 61000-4-x

Safety and regulatory approvals

UL recognition 5000 V rms for 1 minute (double protection)

CSA Component Acceptance Notice #5A (pending)

IEC 60950-1: 600 V rms (reinforced)

IEC 60601-1: 250 V rms (reinforced)

VDE Certificate of Conformity (pending)

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

Low power operation

5 V operation

1.4 mA per channel maximum @ 0 Mbps to 2 Mbps

4.3 mA per channel maximum @ 10 Mbps

34 mA per channel maximum @ 90 Mbps

3 V operation

0.9 mA per channel maximum @ 0 Mbps to 2 Mbps

2.4 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 (RoHS-compliant)

APPLICATIONS

General-purpose, high voltage, multichannel isolation

Medical equipment

Motor drives

Power supplies

GENERAL DESCRIPTION

The ADuM440x1 are 4-channel digital isolators based on the

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 the alternatives, such as

optocoupler devices and other integrated couplers.

The ADuM440x isolators provide four independent isolation

channels in a variety of channel configurations and data rates

(see the Ordering Guide). All models operate with the supply

voltage on 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.

The ADuM440x isolators have a patented refresh feature that

ensures dc correctness in the absence of input logic transitions

and during power-up/power-down conditions.

This family of isolators, like many Analog Devices isolators,

offers very low power consumption, consuming one-tenth to

one-sixth the power of comparable isolators at comparable data

rates up to 10 Mbps. All models of the ADuM440x provide low

pulse width distortion (<2 ns for C grade). In addition, every

model has an input glitch filter to protect against extraneous noise

disturbances.

The ADuM440x contain circuit and layout enhancements to help

achieve system-level IEC 61000-4-x compliance (ESD/burst/surge).

The precise capability in these tests for the ADuM440x are strongly

determined by the design and layout of the user’s board or module.

For more information, see the AN-793 Application Note,

ESD/Latch-Up Considerations with iCoupler Isolation Products.

pending.

FUNCTIONAL BLOCK DIAGRAMS

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ADuM4400

Figure 1. ADuM4400

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ADuM4401

Figure 2. ADuM4401

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ADuM4402

Figure 3. ADuM4402

Rev. 0

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