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ADM2486:  2.5 kV Signal Isolated, High Speed (20 Mbps), Half Duplex RS-485 Transceiver

Статус продукта:Производство
Data
Sheet
ADM2486 Техническое описание на английском Rev D, 02/2006 (pdf 554kB) （О технических описаниях）

Информация о продукте

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    SAFETY & REGULATORY COMPLIANCE

The ADM24861 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A and ISO 8482:1987(E).

The device employs Analog Devices’ iCoupler technology to combine a 3-channel isolator, a 3-state differential line driver, and a differential input receiver into a single package. The logic side of the device can be powered with either a 5 V or a 3 V supply while the bus side is powered with a 5 V supply.

The ADM2486 driver has an active high enable. The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output port that imposes minimal loading on the bus when the driver is disabled or when VDD1 or VDD2 =0. Also provided is an active high receiver disable that causes the receive output to enter a high impedance state.

The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention might cause excessive power dissapation.

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ОСОБЕННОСТИ И ПРЕИМУЩЕСТВА

  • Half-duplex, isolated RS-485 transceiver
  • PROFIBUS® compliant
  • ANSI EIA/TIA 485-A and ISO 8482: 1987(E) compliant
  • 20 Mbps data rate
  • 5 V or 3 V operation (VDD1)
  • High common-mode transient immunity:
    >25 kV/μs
  • Isolated DE status output
  • Receiver open-circuit, fail-safe design
  • Thermal shutdown protection
  • 50 nodes on bus
  • Safety and regulatory approvals
    --UL recognition—2500 VRMS 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; EN 60950: 2000
  • VIORM = 560 V peak
  • Operating temperature range: −40°C to +85°C
  • Wide body, 16-lead SOIC package

Functional Block Diagram for ADM2486

ADM2486 Diagram
Типовые схемы включения и другие схемы

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Документация

Наименование Тип контента Тип файлов
ADM2486: High Speed, Half-Duplex iCoupler® Isolated RS-485 Transceiver Data Sheet  (Rev D, 02/2006) (pdf, 554 kB) Технические описания PDF
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices  (pdf, 406 kB) Статьи по применению PDF
AN-960: RS-485/RS-422 Circuit Implementation Guide  (pdf, 245 kB) Статьи по применению PDF
AN-913: Isolating I2C Interfaces  (pdf, 280 kB) Статьи по применению PDF
AN-825: Power Supply Considerations in iCoupler Isolation Products  (pdf, 181 kB) Статьи по применению PDF
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products  (pdf, 246 kB) Статьи по применению PDF
Solving Isolation Challenges in Power Conversion Applications
This webcast will present solutions to isolation challenges in power conversion applications. Among the topics to be discussed are the limitations of traditional methods of isolation (such as utilization of optocouplers and pulse transformers) vs. more efficient and cost effective solutions that utilize digital isolators. If you are currently using optocouplers and pulse transformers, this is a webcast you should attend. 		Webcasts WEBCAST
Solving Isolation Challenges in Industrial Automation
This webcast will discuss the role isolation plays in providing protection and reducing the system bit-error-rate, using the specific design challenges of an RS-485 network. Topics to be covered in this presentation will include: Why and when one should isolate, Types of isolation and their advantages, Design Considerations for an RS-485 node (and how this translates to design considerations for signal isolation) as well as many other topics. 		Webcasts WEBCAST
UG-240: Evaluation Board for the ADM2486 High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver  (pdf, 179 kB) Руководства пользователей PDF
High-Performance Multichannel Power-Line Monitoring with Simultaneous-Sampling ADCs
By Colm Slattery, Analog Devices, Inc. (Analog Dialogue, Vol. 41, January 2007) 		Журнал Analog Dialogue HTML
MS-2155: Options and Solutions for Partitioning Isolated Power in Isolated RS-485 Nodes  (pdf, 290 kB) Технические статьи PDF
MS-2127: Designing with iCoupler Digital Isolators in Solar PV Inverters  (pdf, 141 kB) Технические статьи PDF
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary  (pdf, 291 kB)
By Flow Zhao, Design Engineer 		Технические статьи PDF
NAppkin Note: Lowering the Power of the ADuM524x  (pdf, 223 kB)
By Mark Cantrell, Senior Applications Engineer 		Технические статьи PDF
Digital Isolator Product Selection and Resource Guide  (pdf, 640 kB) Product Selection Guide PDF
Brochure: Motor and Power Control Solutions  (pdf) Обзор PDF
2008 Medical Solution Profile  (pdf, 126 kB)
High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation 		Обзор PDF
Industrial Automation Solutions  (pdf, 6110 kB) Обзор PDF
iCoupler Digital Isolators Qualified for Automotive Applications Обзор HTML
isoPower® - Isolated dc-to-dc Power in the smallest Package Обзор HTML
Chip scale isolation and innovation, combined. With iCoupler, analog is everywhere. Обзор HTML
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4  (pdf, 1496 kB) Техническая периодика PDF
Test & Instrumentation Solutions Bulletin, Volume 10, Issue 3  (pdf, 1334 kB) Техническая периодика PDF
How do I learn about new iCoupler products? FAQs/RAQs HTML
Are iCoupler products Pb-free? FAQs/RAQs HTML
Can I replace an optocoupler with an iCoupler product in an existing design? FAQs/RAQs HTML
What are some of the distinguishing features of the iCoupler products? FAQs/RAQs HTML
What communications protocols are supported by iCoupler products? FAQs/RAQs HTML
What are the different types of iCoupler products? FAQs/RAQs HTML
Do iCoupler products have VDE certification for reinforced insulation? FAQs/RAQs HTML
With which regulatory standards do iCoupler products comply? FAQs/RAQs HTML
How much isolation can iCoupler products provide? FAQs/RAQs HTML
What are the benefits of iCoupler technology? FAQs/RAQs HTML
What is iCoupler technology? FAQs/RAQs HTML
What types of technologies have been used to provide isolation? FAQs/RAQs HTML
What are optocouplers? What is optical isolation? FAQs/RAQs HTML
What is capacitive isolation? FAQs/RAQs HTML
What regulatory standards address isolation products? FAQs/RAQs HTML
What is isolation? Why is it needed? FAQs/RAQs HTML
What are common applications that use isolation? FAQs/RAQs HTML
How is isolation specified? FAQs/RAQs HTML
What is isolation rating? FAQs/RAQs HTML
What is the relationship between working voltage and isolation rating? FAQs/RAQs HTML
What is the difference between basic and double (or reinforced) insulation levels? FAQs/RAQs HTML
What are transient immunity and common-mode rejection? FAQs/RAQs HTML
What other parameters are important when considering an isolation device? FAQs/RAQs HTML
RAQs index Rarely Asked Questions HTML
Словарь терминов Глоссарий HTML

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ADM2486 Model Options
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Приведенные цены действительны в США и указаны только для примерного бюджетного рассчета. Цены указаны в долларах США (за штуку в указанном размере партии) и могут быть изменены. Цены в других регионах могут отличаться в зависимости от местных пошлин, налогов, сборов и курсов валют. Для уточнения стоимости обращайтесь в местные офисы продаж Analog Devices, или к официальным дистрибьюторам. Цены на оценочные платы и наборы указаны за штуку независимо от количества.

ezLINX™ iCoupler® Isolated Interface Development Environment
Модели Описание Цена Без использования свинца PCN/PDN Проверка наличия/
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EZLINX-IIIDE-EBZ Статус: Prodn iCoupler® Isolated Interface Development Environment Evaluation Board $ 149,00 Да -

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ADM2486 Evaluation Board
Модели Описание Цена Без использования свинца PCN/PDN Проверка наличия/
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EVAL-ADM2486EBZ Статус: Prodn Evaluation Board $ 75,00 Да -

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