ADUM1251ARZ - 

Digital Isolator, Dual, 2 Channel, 150 ns, 3 V, 5.5 V, SOIC, 8 Pins

ADUM1251ARZ - Digital Isolator, Dual, 2 Channel, 150 ns, 3 V, 5.5 V, SOIC, 8 Pins

The actual product may differ from image shown

Manufacturer Part No:
Newark Part No.:
Technical Datasheet:
See all Technical Docs

Product Overview

The ADUM1251ARZ is a hot swappable, dual I2C isolator in 8pin NSOIC package. It is a digital isolator with nonlatching bidirectional communication channels that are compatible with I2C interfaces. This eliminates need for splitting I2C signals into separate transmit and receive signals for use with standalone optocouplers. The ADuM1251 provides one bidirectional channel and one unidirectional channel for applications where bidirectional clock is not required. It contains hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus. This isolator is based on iCoupler chip scale transformer technology from Analog Devices. iCoupler is a magnetic isolation technology with functional performance, size and power consumption advantages as compared to optocouplers. The iCoupler channels can be integrated with semiconductor circuitry which enables complete isolated I2C interface to be implemented in a small form factor.
  • 30mA current sink capability
  • 1000KHz operation
  • 3V to 5.5V supply/logic levels
  • Maximum data rate of 1Mbps
  • Maximum propagation delay of 150ns
  • Open drain interfaces
  • UL, CSA, VDE and CQC approved
  • Operating temperature range from -40°C to 105°C


Communications & Networking, Power Management


ESD (electrostatic discharge) sensitive device. Proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

Product Information

2 Channel
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.


Compare Selected
Manufacturer Part Number
Newark Part No.
Manufacturer / Description
Price For

Each (Supplied on Full Reel)

2500+ $1.98

Associated Products

Compare Selected

Related Searches

US continental orders over $49 and under 50 pounds may qualify for free ground shipping. Click the link for the full Terms and Conditions of the offer.

5 In stock

for same day shipping

Available in quantity shown

To order more than shown inventory, contact sales

see cut-off times
$5.73 $ 5.73
Price for:
Multiple: 1 Minimum: 1
Quantity Price
1 + $5.73
10 + $5.11
25 + $4.60
50 + $4.39
100 + $4.19
250 + $3.80
500 + $3.41
No longer stocked:: No Longer Manufactured::
Add to Cart
Add Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.