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Not Recommended for New Designs: This part is Not Recommended for New Designs (NRND). For newer designs, we recommend you use:
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SI8640AB-IS1
Si86xx Digital Isolators
Device/Module image

Si8440AB-IS1

Si84xx Digital Isolators

Si8440AB-IS1 digital isolators are part of the industry’s highest-performance, easiest-to-use, and lowest-cost line of 2,500 to 5,000 kVrms rated digital isolators for I²C and SMBus serial port applications. Si8440AB-IS1 isolators are based on our proprietary RF isolation technology and offer shorter propagation delays, lower power consumption, smaller installed size, and more stable operation with temperature and age versus opto couplers or other digital isolators. This isolator is 10x more reliable than an optocoupler.

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Key Specs

 
Unidirectional Channels
4
Forward Channels
4
Reverse Channels
0
Max Data Rate
1
Default Output State
Low
Package
NB SOIC16
Unidirectional Channels
4
Forward Channels
4
Reverse Channels
0
Max Data Rate
1
Default Output State
Low
Package
NB SOIC16
Si84xx Block Diagram

Si84xx Isolator Evaluation Kit

The Si84xxISO-KIT evaluation kit provides a convenient engineering break out board for simplifying evaluations of the Si84xx isolation product family with three different isolators (2, 4 and 6-channel) as well as a bidirectional I²C compliant isolator.

Si84xx Isolator Evaluation Kit

The Si84xxISO-KIT evaluation kit provides a convenient engineering break out board for simplifying evaluations of the Si84xx isolation product family with three different isolators (2, 4 and 6-channel) as well as a bidirectional I²C compliant isolator.
MSRP $40.00
Add to Cart
Learn More

Si84xx Isolator Evaluation Kit

The Si84xxISO-KIT evaluation kit provides a convenient engineering break out board for simplifying evaluations of the Si84xx isolation product family with three different isolators (2, 4 and 6-channel) as well as a bidirectional I²C compliant isolator.

Si84xx Isolator Evaluation Kit

The Si84xxISO-KIT evaluation kit provides a convenient engineering break out board for simplifying evaluations of the Si84xx isolation product family with three different isolators (2, 4 and 6-channel) as well as a bidirectional I²C compliant isolator.
MSRP $40.00
Add to Cart
Learn More
Find quality, environmental, shipping, and supply chain information for Silicon Labs devices. You can also download the following environmental documents for each part number: Detailed Device Composition (MDDS), IPC 1752-2 Class 6 (XML format), RoHS Certificate of Compliance, ICP test reports, Halogen-Free Certificate of Compliance, PFOS/PFOA Certificate of Compliance, and REACH Declaration.
Company Name Silicon Laboratories, Inc.
Company Address 400 W. Cesar Chavez Austin, TX 78701
Date of Incorporation 1996
Terms and Conditions View PDF
California SB 657 View PDF
Corp Social Responsibility 1996
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