Not Recommended for New Design

Si8450AB-IS1 Digital Isolator

The Si8450AB-IS1 digital isolator is 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. . The  Si8450AB-IS1 isolator is based on Silicon Labs 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 digital isolator is 10x more reliable than an optocoupler.

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Specifications Summary

Unidirectional Channels: 5

Forward Channels: 5

Reverse Channels: 0

Max Data Rate: 1

Default Output State: Low

Package Type: NB SOIC16

Development Tools Type
Si84xx Isolator Evaluation Kit Evaluation Kits
Title Version Resource Type
Si84xx IBIS Models V4.0 0.5 Software
AN614: A Simple Alternative to Analog Isolation Amplifiers 0.2 Application Notes
AN611: Using the ISOvolt DC/DC Converter Reference Design 0.2 Application Notes
AN583: Safety Considerations and Layout Recommendations for Digital Isolators 0.3 Application Notes
Si84XX-RevA and RevC to RevB and RevD Product Change Notifications (PCN)
Improved MSL performance for Si84xx Isolation Products in Narrow Body Packages/Datasheet Rev 1.2 Product Change Notifications (PCN)
Si8450AB-B-IS1 CAD/CAE Schematic Footprints and Symbols 1.0 Schematic and Layout Files
Si844x/5x QSOP Data Sheet 1.2 Data Sheets
Si845x Data Sheet 1.6 Data Sheets
先进的数字隔离技术提高太阳能逆变器可靠性 1.0 White Papers
CMOS Isolators for Home Appliance Motor Control 2.0 White Papers
先進的數位隔離技術提高太陽能逆變器的可靠性 1.0 White Papers
Advanced Digital Isolation Technologies Boost Solar Power Inverter Reliability 1.0 White Papers
CMOS Advanced Galvanic Isolators for Medical Electronics 0.2 White Papers
CMOS Digital Isolators Supersede Optocouplers in Industrial Applications 0.3 White Papers
Digital Isolator Evolution Drives Optocoupler Replacement 1.0 White Papers
Enhancing Data Integrity and Reliability of Smart Metering Solutions with CMOS Digital Isolators 1.0 White Papers
Low EMI Isolation for Medical Equipment Applications 0.2 White Papers
Isolation Selector Guide 3 Brochures
PB #1606031: Inner Box Label Change Product Change Notifications (PCN)
Standard Outerbox Label Change to Include RoHS and Halogen Free Mark Product Change Notifications (PCN)
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