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ADUM2250:  Hot-Swappable Dual I2C® Isolators, 5 kV

Информация о продукте

Статус продукта:Производство

The ADuM2250/ADuM2251 are hot swappable digital isolators with nonlatching bidirectional communication channels and are compatible with I2C interfaces. This eliminates the need for splitting I2C signals into separate transmit and receive signals for use with stand-alone optocouplers.

The ADuM2250 provides two bidirectional channels supporting a complete isolated I2C interface. The ADuM2251 provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required.

The ADuM2250/ADuM2251 contain hot swap circuitry to prevent data glitches when an unpowered card is inserted onto an active bus.

These isolators are based on iCoupler® chip-scale transformer technology from Analog Devices, Inc. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages compared to optocouplers. The ADuM2250/ADuM2251 integrate iCoupler channels with semiconductor circuitry to enable a complete, isolated I2C interface provided in a small form-factor.

Applications
  • Isolated I2C, SMbus, or PMBus Interfaces
  • Multilevel I2C interfaces
  • Power supplies
  • Networking
  • Power-over-Ethernet

ОСОБЕННОСТИ И ПРЕИМУЩЕСТВА

  • Bidirectional I2C communication
  • Open-drain interfaces
  • Suitable for hot swap applications
  • 30 mA current sink capability
  • 1000 KHz operation
  • 3.0 V to 5.5 V supply/logic levels
  • Wide body SOIC 16-lead package with > 8 mm creepage
  • High temperature operation: 105°C
  • Safety and regulatory approvals
  • UL recognition (pending)
  • 5000 V rms for 1 minute per UL 1577
  • CSA component acceptance notice #5A

Functional Block Diagram for ADUM2250

Of Note ...

An Overview of the iCoupler family of products is available.

Technical Article: IEC 60601-1-Compliant Digital Isolators with iCoupler Technology

For additional ADI Healthcare Products and related information, please visit www.analog.com/healthcare.

Документация

Наименование Тип контента Тип файлов
ADuM2250/ADuM2251: Hot-Swappable, Dual I2C Isolators, 5 kV Data Sheet (Rev C, 05/2014) (pdf, 302 kB) Технические описания PDF
AN-0971: Управление уровнем излучений при работе с компонентами на основе технологии isoPower  (pdf, 406 kB) Статьи по применению PDF
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices  (pdf, 406 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
AN-770: iCoupler® Isolation in CAN Bus Applications  (pdf, 234 kB) Статьи по применению PDF
AN-740: iCoupler® Isolation in RS-232 Applications  (pdf, 716 kB) Статьи по применению PDF
AN-727: iCoupler® Isolation in RS-485 Applications  (pdf, 282 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
Creepage Requirements for Medical Applications  (pdf, 588 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
Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric Vehicles  (pdf, 234 kB)
By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc.
Технические статьи PDF
High Speed Digital Isolators Using Microscale On-Chip Transformers  (pdf, 2717 kB)
By Baoxing Chen, John Wynne, and Ronn Kliger
Технические статьи PDF
iCoupler® Products with isoPower™ Technology: Signal and Power Transfer Across Isolation Barrier Using Microtransformers  (pdf, 1306 kB)
By Baoxing Chen
Технические статьи PDF
Microtransformer Isolation Benefits Digital Control
by Dr. Baoxing Chen, Analog Devices, Inc. (Power Electronics Technology, October 2008)
Технические статьи HTML
Medical Devices Demand Stringent Isolation Techniques
(EDN, 9/28/2006)
Технические статьи HTML
Safety & Regulatory Compliance Information Обеспечение качества HTML
Digital Isolator Product Selection and Resource Guide  (pdf, 640 kB) Product Selection Guide PDF
ADuM125x/ADuM225x Dual-Channel, Hot-Swappable, I2C® Bidirectional Digital Isolators with up to 5 kV Isolation  (pdf, 1493 kB)
The ADuM125x/ADuM225x are dual-channel bi-directional I2C digital isolators that are hot-swappable and capable of data rates up to 1MHz.
Обзор PDF
2008 Medical Solution Profile  (pdf, 126 kB)
High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation
Обзор PDF
iCoupler Digital Isolators Qualified for Automotive Applications Обзор HTML
isoPower® - Изолированные преобразователи постоянного напряжения питания в самом маленьком корпусе Обзор HTML
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

Средства разработки, программные модели, драйверы и ПО

Наименование Тип контента Тип файлов
ADuM2250 IBIS Model (All Speed Grades)  (ibs) Модели IBIS IBS

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Обозначения и посадочные места— Analog Devices предлагает библиотеки компонентов, совместимые с широким спектром современных САПР.

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