ADuM2251
PRODUCTIONHot-Swappable Dual I2C® Isolators, 5 kV
- Part Models
- 6
- 1ku List Price
- Starting From $3.41
Part Details
- 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)
The ADuM2250 / 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 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
Documentation
Data Sheet 1
User Guide 1
Application Note 7
Technical Articles 5
Informational 1
Safety and Regulatory Compliance 1
Frequently Asked Question 1
Video 1
Safety and Regulatory Compliance 1
Circuit Note 1
Webcast 3
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 |
---|---|---|---|
ADUM2251ARIZ | 16-Lead SOIC (Increased Creepage) | ||
ADUM2251ARIZ-RL | 16-Lead SOIC (Increased Creepage) | ||
ADUM2251ARWZ | 16-Lead SOIC Wide | ||
ADUM2251ARWZ-RL | 16-Lead SOIC Wide | ||
ADUM2251WARWZ | 16-Lead SOIC Wide | ||
ADUM2251WARWZ-RL | 16-Lead SOIC Wide |
Part Models | Product Lifecycle | PCN |
---|---|---|
Sep 22, 2015 - 15_0135 Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli |
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ADUM2251ARIZ | PRODUCTION | |
ADUM2251ARIZ-RL | PRODUCTION | |
ADUM2251ARWZ | PRODUCTION | |
ADUM2251ARWZ-RL | PRODUCTION | |
Nov 19, 2013 - 13_0109 Notification of qualification of Alternate Fab Foundry at ADI Limerick for TC die in Isolation products. |
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ADUM2251ARIZ | PRODUCTION | |
ADUM2251ARIZ-RL | PRODUCTION | |
ADUM2251ARWZ | PRODUCTION | |
ADUM2251ARWZ-RL | PRODUCTION | |
Nov 6, 2013 - 13_0283 Change of Moisture Sensitivity Level Rating for iCoupler Products Assembled in an RI-16 Package from MSL 1 to MSL 3 |
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ADUM2251ARIZ | PRODUCTION | |
ADUM2251ARIZ-RL | PRODUCTION | |
Dec 18, 2012 - 12_0228 ADuM125x/ADuM225x Die Revision |
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ADUM2251ARIZ | PRODUCTION | |
ADUM2251ARIZ-RL | PRODUCTION | |
ADUM2251ARWZ | PRODUCTION | |
ADUM2251ARWZ-RL | PRODUCTION | |
Feb 27, 2012 - 11_0066 Qualification of Alternate Fab Foundry Gold Plating Process Site for Isolation Products at ADI Limerick. |
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ADUM2251ARIZ | PRODUCTION | |
ADUM2251ARIZ-RL | PRODUCTION | |
ADUM2251ARWZ | PRODUCTION | |
ADUM2251ARWZ-RL | PRODUCTION | |
Apr 27, 2016 - 15_0135 Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli |
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ADUM2251WARWZ | PRODUCTION | |
ADUM2251WARWZ-RL | PRODUCTION |
This is the most up-to-date revision of the Data Sheet.
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