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ADUM1210BRZ

Dual-Channel Digital Isolator

Analog Devices 

FEATURES

Narrow body, 8-lead SOIC

Low power operation

5 V operation

1.1 mA per channel maximum @ 0 Mbps to 2 Mbps

3.7 mA per channel maximum @ 10 Mbps

3 V operation

0.8 mA per channel maximum @ 0 Mbps to 2 Mbps

2.2 mA per channel maximum @ 10 Mbps

3 V/5 V level translation

High temperature operation: 105°C

High data rate: dc to 25 Mbps (NRZ)

Precise timing characteristics

3 ns maximum pulse width distortion

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 EN 60747-5-2 (VDE 0884 Part 2): 2003-01

DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000

VIORM = 560 V peak

APPLICATIONS

Size-critical multichannel isolation

SPI® interface/data converter isolation

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

Digital field bus isolation

Dual-Channel Digital Isolator

ADuM1210

GENERAL DESCRIPTION

The ADuM12101 is a dual-channel, digital isolator based on

Analog Devices’ iCoupler® technology. Combining high speed

CMOS and monolithic transformer technology, this isolation

component provides outstanding performance characteristics

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 concerns of the typical optocoupler

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 iCoupler products.

Furthermore, iCoupler devices consume one-tenth to one-sixth

the power of optocouplers at comparable signal data rates.

The ADuM1210 isolator provides two independent isolation

channels operable with the supply voltage on either side ranging

from 2.7 V to 5.5 V. This provides compatibility with lower

voltage systems as well as enabling a voltage translation

functionality across the isolation barrier. In addition, the

ADuM1210 provides low pulse-width distortion (<3 ns) and

tight channel-to-channel matching (<3 ns). Unlike other

optocoupler alternatives, the ADuM1210 isolator has a patented

refresh feature that ensures dc correctness in the absence of

input logic transitions and during power-up/power-down

conditions. Furthermore, as an alternative to the ADuM1200

dual-channel, digital isolator that defaults to an output high

condition, the ADuM1210’s outputs default to a logic low state

when input power is off.

1 Protected by U.S. Patents 5,952,849; 6,873,065; and other pending patents.

FUNCTIONAL BLOCK DIAGRAM

VDD1 1

VIA 2

VIB 3

GND1 4

ENCODE

ENCODE

DECODE

DECODE

Figure 1.

8 VDD2

7 VOA

6 VOB

5 GND2

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2006 Analog Devices, Inc. All rights reserved.

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