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ADM2582E

更新时间： 2024-11-25 06:36:19

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	582K
描述
Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection

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ADM2582E 数据手册

Signal and Power Isolated RS-485

Transceiver with ± ±5 ꢀk ꢁSꢂ Protection

AꢂM2582ꢁ/AꢂM2587ꢁ

FEATURES

FUNCTIONAL BLOCK DIAGRAM

ISOOUT

Isolated RS-485/RS-422 transceiver, configurable as half or

full duplex

isoPower DC-TO-DC CONVERTER

isoPower® integrated isolated dc-to-dc converter

15 kV ESD protection on RS-485 input/output pins

Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)

ADM2582E data rate: 16 Mbps

OSCILLATOR

RECTIFIER

ISOIN

REGULATOR

ADM2587E data rate: 500 kbps

5 V or 3.3 V operation

Connect up to 256 nodes on one bus

DIGITAL ISOLATION iCoupler

TRANSCEIVER

Open- and short-circuit, fail-safe receiver inputs

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

Thermal shutdown protection

Safety and regulatory approvals (pending)

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

VDE Certificates of Conformity

ENCODE

DECODE

ENCODE

TxD

ENCODE

DECODE

RxD

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

_IORM= 560 V peak

ADM2582E/ADM2587E

Operating temperature range: −40°C to +85°C

Highly integrated, 20-lead, wide-body SOIC package

GND

ISOLATION

BARRIER

Figure 1.

APPLICATIONS

Isolated RS-485/RS-422 interfaces

Industrial field networks

Multipoint data transmission systems

GENERAL DESCRIPTION

The ADM2582E/ADM2587E are fully integrated signal and

power isolated data transceivers with ±±5 kV ESD protection

and are suitable for high speed communication on multipoint

transmission lines. The ADM2582E/ADM2587E include an

integrated isolated dc-to-dc power supply, which eliminates the

need for an external dc-to-dc isolation block.

The ADM2582E/ADM2587E driver has an active high enable.

An active low receiver enable is also provided that causes the

receiver output to enter a high impedance state when disabled.

The devices have current limiting and thermal shutdown

features to protect against output short circuits and situations

where bus contention may cause excessive power dissipation.

The parts are fully specified over the industrial temperature

range and are available in a highly integrated, 20-lead, wide-

body SOIC package.

They are designed for balanced transmission lines and comply

with ANSI/TIA/EIA-485-A-98 and ISO 8482:±987(E).

The devices integrate Analog Devices, Inc., iCoupler® technology to

combine a 3-channel isolator, a three-state differential line driver, a

differential input receiver, and Analog Devices isoPower dc-to-

dc converter into a single package. The devices are powered by a

single 5 V or 3.3 V supply, realizing a fully integrated signal and

power isolated RS-485 solution.

The ADM2582E/ADM2587E contain isoPower technology that

uses high frequency switching elements to transfer power through

the transformer. Special care must be taken during printed circuit

board (PCB) layout to meet emissions standards. Refer to

Application Note AN-097±, Control of Radiated Emissions with

isoPower Devices, for details on board layout considerations.

Rev. 0

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

Fax: 781.461.3113

www.analog.com

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