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ADUM3211BRZ

更新时间： 2024-11-18 06:36:27

品牌	Logo	应用领域
亚德诺 - ADI		驱动程序和接口接口集成电路光电二极管 PC
页数	文件大小	规格书
20页	526K
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Dual-Channel Digital Isolators, Enhanced System-Level ESD Reliability

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ADUM3211BRZ 数据手册

Dual-Channel Digital Isolators,

Enhanced System-Level ESD Reliability

ADuM3210/ADuM3211

GENERAL DESCRIPTION

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

The ADuM321x¹are 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.

5 V operation

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 temperature and lifetime effects are eliminated with the

simple iCoupler digital interfaces and stable performance charac-

teristics. 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.

1.6 mA per channel maximum @ 0 Mbps to 2 Mbps

3.7 mA per channel maximum @ 10 Mbps

3 V operation

1.4 mA per channel maximum @ 0 Mbps to 2 Mbps

2.4 mA per channel maximum @ 10 Mbps

3 V/5 V level translation

High data rate: dc to 10 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

The two channels of the ADuM321x are independent isolation

channels and are available in two channel configurations with

two different data rates up to 10 Mbps (see the Ordering Guide).

They 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 voltage translation functionality across

the isolation barrier. The ADuM321x isolators have a default

output low characteristic in comparison to the ADuM3200/

ADuM3201 models that have a default output high characteristic.

The ADuM321x are also available in 125°C temperature grade.

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

_IORM= 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

In comparison to the ADuM120x isolator, the ADuM321x

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 ADuM321x 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.

Gate drive interfaces

FUNCTIONAL BLOCK DIAGRAMS

ADuM3210

ADuM3211

DD1

DD2

DD1

DD2

ENCODE

DECODE

ENCODE

DECODE

GND

Figure 1. ADuM3210 Functional Block Diagram

Figure 2. ADuM3211 Functional Block Diagram

¹Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239. Other patents pending.

Rev. C

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 registeredtrademarks arethe 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

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ADUM3211BRZ 替代型号

型号	品牌	替代类型	描述	数据表
ADUM3211BRZ-RL7	ADI	完全替代	Dual-Channel Digital Isolators, Enhanced System-Level ESD Reliability

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