Dual-Channel Digital Isolators,

Enhanced System-Level ESD Reliability

Data Sheet

ADuM3210/ADuM3211

Rev. E

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FEATURES

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

High temperature operation: 125°C

Default low output

Narrow body, RoHS-compliant, 8-lead SOIC

Low power operation

5 V operation

1.7 mA per channel maximum @ 0 Mbps to 2 Mbps

3.7 mA per channel maximum @ 10 Mbps

7.0 mA per channel maximum @ 25 Mbps

3 V operation

1.5 mA per channel maximum @ 0 Mbps to 2 Mbps

2.5 mA per channel maximum @ 10 Mbps

4.7 mA per channel maximum @ 25 Mbps

3 V/5 V level translation

High data rate: dc to 25 Mbps (NRZ)

Precise timing characteristics

3 ns maximum pulse-width distortion at 5 V operation

3 ns maximum channel-to-channel matching

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

Safety and regulatory approvals

UL recognition: 2500 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice #5A

VDE Certificate of Conformity

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

Qualified for automotive applications

APPLICATIONS

Size-critical multichannel isolation

SPI interface/data converter isolation

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

Digital field bus isolation

Gate drive interfaces

Hybrid electric vehicles, battery monitor, and motor drive

GENERAL DESCRIPTION

The ADuM3210/ADuM3211 are dual-channel, digital isolators

based on Analog Devices, Inc., iCoupler® technology. Combining

high speed CMOS and monolithic transformer technology, this

isolation component provides outstanding performance charac-

teristics superior to alternatives such as optocoupler devices.

By avoiding the use of LEDs and photodiodes, iCoupler devices

remove the design difficulties commonly associated with opto-

couplers. The typical optocoupler concerns regarding uncertain

current transfer ratios, nonlinear transfer functions, and temperature

and lifetime effects are eliminated with the simple iCoupler digital

interfaces and stable performance characteristics. The need for

external drivers and other discrete components is eliminated

with these iCoupler products. Furthermore, iCoupler devices

consume one-tenth to one-sixth the power of optocouplers at

comparable signal data rates.

The ADuM3210/ADuM3211 isolators provide two independent

isolation channels in two channel configurations with data rates

up to 25 Mbps (see the Ordering Guide). They operate with 3.3 V

or 5 V supply voltages on either side, providing compatibility

with lower voltage systems as well as enabling voltage translation

functionality across the isolation barrier. The ADuM3210/

ADuM3211 isolators have a default output low characteristic in

comparison to the ADuM3200/ ADuM3201 models that have a

default output high characteristic. ADuM3210W and ADuM3211W

are automotive grade versions qualified for 125°C operation.

In comparison to the ADuM120x isolator, the ADuM3210/

ADuM3211 isolators contain various circuit and layout changes

providing increased capability relative to system-level IEC 61000-4-x

testing (ESD, burst, and surge). The precise capability in these tests

for either the ADuM120x or ADuM3210/ADuM3211 products is

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.

FUNCTIONAL BLOCK DIAGRAMS

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ADuM3210

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Figure 1. ADuM3210 Functional Block Diagram

Figure 2. ADuM3211 Functional Block Diagram

Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,239.