ADuM2250
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ADuM2250

Hot-Swappable Dual I2C® Isolators, 5 kV

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1ku List Price Starting From $3.69
Features
  • 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
  • 16-lead SOIC wide body package version (RW-16)
  • High temperature operation: 105°C
  • 16-lead SOIC wide body enhanced creepage version (RI-16-2
  • Safety and regulatory approvals
  • UL recognition: 5000 V rms for 1 minute per UL 1577
  • 5000 V rms for 1 minute per UL 1577
  • CSA Component Acceptance Notice 5A (RI-16-2 package)
Additional Details
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The ADuM2250 / ADuM2251 are hot swappable digital isolators with nontlatching, 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 package.

APPLICATIONS

  • Isolated I2C, SMbus, or PMBus Interfaces
  • Multilevel I2C interfaces
  • Power supplies
  • Networking
  • Power over Ethernet
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ADuM2250

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Data Sheet

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UPDATED 07/31/2015
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ADuM2250/ADuM2251: Hot-Swappable, Dual I2C Isolators, 5 kV Data Sheet (Rev.D)

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UPDATED 05/28/2008
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ADuM2250/ADuM2251: ホットスワップ可能な、5kVのI2C用アイソレータ (Rev.0)

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Application Note

24

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UPDATED 06/20/2007
English
AN-913: Isolating I2C Interfaces (Rev.0) redirect icon

280 kB

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UPDATED 06/20/2007
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AN-913: I²C 接口的隔离 (Rev.0) redirect icon

308 kB

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UPDATED 06/20/2007
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AN-913: I²Cインターフェースのアイソレーション (Rev.0) redirect icon

365 kB

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UPDATED 11/01/2006
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AN-770: iCoupler® Isolation in CAN Bus Applications (Rev.0) redirect icon

234 kB

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UPDATED 01/31/2011
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AN-770: CAN总线应用中的iCoupler®隔离 (Rev.0) redirect icon

362 kB

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UPDATED 11/01/2006
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AN-770: iCoupler®絶縁のCANバスでの応用 (Rev.0) redirect icon

291 kB

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UPDATED 11/01/2006
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AN-740: iCoupler® Isolation in RS-232 Applications (Rev.A) redirect icon

218.29 K

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UPDATED 08/31/2010
Chinese
AN-740: RS-232应用中的iCoupler® 隔离 (Rev.0) redirect icon

494 kB

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UPDATED 11/09/2010
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AN-740: RS-232アプリケーションでのiCoupler®アイソレーション (Rev.0) redirect icon

560 kB

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UPDATED 11/01/2006
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AN-727: iCoupler® Isolation in RS-485 Applications (Rev.0) redirect icon

282 kB

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UPDATED 07/26/2010
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AN-727: RS-485应用中的iCoupler®隔离 (Rev.0) redirect icon

373 kB

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UPDATED 02/21/2011
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AN-727: RS-485アプリケーションでのiCoupler®アイソレータ (Rev.0) redirect icon

756 kB

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UPDATED 11/01/2006
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AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev.0) redirect icon

181 kB

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UPDATED 09/09/2010
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AN-825: iCoupler®隔离产品的电源考虑因素 (Rev.0) redirect icon

181 kB

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UPDATED 11/01/2006
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AN-825: iCoupler®アイソレーション製品での電源の考慮事項 (Rev.0) redirect icon

340 kB

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UPDATED 11/01/2006
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AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev.A) redirect icon

246 kB

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UPDATED 01/31/2011
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AN-793: iCoupler®隔离产品的ESD/闩锁考虑因素 (Rev.A) redirect icon

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UPDATED 11/01/2006
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AN-793: iCoupler®アイソレータ製品のESD / ラッチアップに関する考慮事項 (Rev.0) redirect icon

331 kB

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UPDATED 11/22/2023
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AN-913: Isolating I2C Interfaces redirect icon

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UPDATED 11/22/2023
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AN-913: Isolating I2C Interfaces redirect icon

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UPDATED 11/22/2023
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AN-913: I2Cインターフェースのアイソレーション redirect icon

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UPDATED 07/03/2020
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AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices redirect icon

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UPDATED 07/03/2020
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AN-0971: isoPower器件的辐射控制建议 redirect icon

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UPDATED 07/03/2020
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AN-0971：isoPower デバイスでの EMI 放射制御についての推奨事項 redirect icon

Technical Articles

5

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UPDATED 12/10/2010
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NAppkin Note: Lowering the Power of the ADuM524x redirect icon

223 kB

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UPDATED 10/01/2008
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Microtransformer Isolation Benefits Digital Control redirect icon

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UPDATED 12/10/2010
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Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary redirect icon

291 kB

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UPDATED 09/28/2006
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Medical Devices Demand Stringent Isolation Techniques redirect icon

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UPDATED 09/08/2010
Chinese
医疗设备要求严格的隔离技术 redirect icon

User Guide

1

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UPDATED 11/28/2017
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UG-1100: Evaluating the ADuM1250, ADuM1251, ADuM2250, and ADuM2251 Hot Swappable, Dual I2C Isolators (Rev.0) redirect icon

343.67 K

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Informational

2

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UPDATED 02/14/2015
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First Digital Isolators to Achieve 8.3mm Creepage Packaging redirect icon

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UPDATED 02/10/2015
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8mm沿面距離パッケージを実現した初のデジタル・アイソレータ redirect icon

Safety and Regulatory Compliance

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UPDATED 01/28/2016
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安全規格認証や適合の取得状況 redirect icon

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Documentation

Documentation

Technical Documents 17
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Data Sheet 1

ADuM2250/ADuM2251: Hot-Swappable, Dual I2C Isolators, 5 kV Data Sheet (Rev.D)

User Guide 1

UG-1100: Evaluating the ADuM1250, ADuM1251, ADuM2250, and ADuM2251 Hot Swappable, Dual I2C Isolators (Rev.0)

Application Note 8

AN-913: Isolating I2C Interfaces (Rev.0)
AN-770: iCoupler® Isolation in CAN Bus Applications (Rev.0)
AN-740: iCoupler® Isolation in RS-232 Applications (Rev.A)
AN-727: iCoupler® Isolation in RS-485 Applications (Rev.0)
AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev.0)
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev.A)
AN-913: Isolating I2C Interfaces
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices

Technical Articles 4

NAppkin Note: Lowering the Power of the ADuM524x
Microtransformer Isolation Benefits Digital Control
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary
Medical Devices Demand Stringent Isolation Techniques

Informational 1

First Digital Isolators to Achieve 8.3mm Creepage Packaging

Safety and Regulatory Compliance 1

Safety and Regulatory Compliance Information

Frequently Asked Question 1

FAQ

3rd Party Solutions 1

MIKROE-5603, Click Board, I2C Isolator 6 Click

Product Selection Guide 1

Digital Isolation and Interface Technology Selection Guide

Safety and Regulatory Compliance 1

Safety and Regulatory Compliance Information

Webcast 2

Solving Isolation Challenges in Power Conversion Applications
Innovative Isolated RS-485, SPI and LVDS Communications

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2016-05-27

02:04

Analog Devices' Isolation Technology for Industrial Motor Control

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2020-10-28

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Protect your Innovations: from High Precision to High Power

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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ADUM2250ARWZ 16-Lead SOIC Wide external-link
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ADUM2250ARWZ-RL 16-Lead SOIC Wide external-link
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ADUM2250WARWZ 16-Lead SOIC Wide external-link
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ADUM2250WARWZ-RL 16-Lead SOIC Wide external-link
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Qualification of Alternate Fab Foundry Gold Plating Process Site for Isolation Products at ADI Limerick.

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Evaluation Kit

Evaluation Kits 1

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EVAL-ADuM1250

ADuM1250 Evaluation Board

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EVAL-ADuM1250

ADuM1250 Evaluation Board

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EVAL-ADuM1250
ADuM1250 Evaluation Board

Features and Benefits

  • Access to two bidirectional data channels
  • Multiple connection options
  • Support for active probes
  • Provisions for cable terminations
  • Support for PCB edge mounted coaxial connectors
  • Easy configuration
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Product Detail

The EVAL-ADuM1250EBZ supports two bidirectional channels for evaluation of isolated I2C interfaces in 8-lead SOIC packages. The evaluation board provides a JEDEC standard, 8-lead SOIC_N pad layout. This layout supports signal distribution, loopback, and loads referenced to the VDDx or GNDx planes, as well as optimal bypass capacitance. Signal sources can be conducted to the board through header pins or through edge mounted Sub- miniature Version A (SMA) connectors (SMA connectors must be ordered separately).

Screw terminal blocks on the evaluation board provide power connections. The board includes 200 mil (5.08 mm) header positions for compatibility with active probes (probe header pins must be ordered separately). The EVAL-ADuM1250EBZ evaluation board can be used to evaluate the ADuM1250, ADuM1251, ADuM2250, and ADuM2251 devices. Although the pad layout on the EVAL- ADuM1250EBZ does not support the ADuM2250 and ADuM2251 16-lead SOIC_W and SOIC_IC packages, these devices are functionally equivalent to the ADuM1250 and ADuM1251, respectively, for the purposes of evaluation. They differ only by package and isolation capabilities. Therefore, evaluations of the ADuM1250 and ADuM1251 can be applied to the ADuM2250 and ADuM2251 as well.

The evaluation board follows best printed circuit board (PCB) design practices for 4-layer boards, including a full power and ground plane on each side of the isolation barrier. No other electromagnetic interference (EMI) or noise mitigation design features are included on this evaluation board. For high speed operation, or when ultralow emissions are required, refer to the AN-1109 Application Note for additional evaluation board layout techniques.

Full specifications for the ADuM1250 are available in the ADuM1250 data sheet, which must be consulted in conjunction with User Guide UG-1100 when working with the evaluation board.

Resources

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UG-1100: Evaluating the ADuM1250, ADuM1251, ADuM2250, and ADuM2251 Hot Swappable, Dual I2C Isolators (Rev.0) Download

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EVAL-ADuM1250

ADuM1250 Evaluation Board

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