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ADuM2251 Datasheet

ADuM2251 Datasheet

Hot-Swappable Dual I2C® Isolators, 5 kV
Part No.: ADuM2251
Page: 16 Pages
Size: 342 KB
Manufacturer: Analog Devices, Inc.
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Views: 1
Update Time: 2023-12-13 11:17:12
DataSheet: Download

ADuM2251 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
ADuM2251ARWZ Tube 47   3 16 -40°C ~ 105°C 16-Lead SOIC_W  
ADuM2251ARWZ-RL Reel 1000   3 16 -40°C ~ 105°C 16-Lead SOIC_W, 13” Tape and Reel  
ADuM2251WARWZ Tube 47   3 16 -40°C ~ 125°C 16-Lead SOIC_W  
ADuM2251WARWZ-RL Reel 1000   3 16 -40°C ~ 125°C 16-Lead SOIC_W, 13” Tape and Reel  
ADuM2251ARIZ Tube 37   3 16 -40°C ~ 105°C 16-Lead SOIC_W  
ADuM2251ARIZ-RL Reel 1000   3 16 -40°C ~ 105°C 16-Lead SOIC_W, 13” Tape and Reel  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

ADuM2251 Datasheet(PDF)

ADuM2251 Datasheet(Picture)

ADuM2251 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)

ADuM2251 Applications

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

ADuM2251 Description

The ADuM2251 are hot swappable digital isolators with non-latching, 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 ADuM2251 provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required.

The 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 ADuM2251 integrate iCoupler channels with semiconductor circuitry to enable a complete, isolated I2C interface provided in a small form factor.

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