SI8423AB-D-ISR

Digital Isolators Overview

The SI8423AB-D-ISR is a general-purpose digital isolator from Skyworks Solutions, featuring two channels with unidirectional signal transmission. It operates within a supply voltage range of 2.6 V to 5.5 V and supports data rates up to 1 Mbps. The device provides 2500 Vrms isolation voltage via capacitive coupling technology. Key electrical parameters include a maximum propagation delay of 35 ns, rise and fall times of 2 ns, and a common-mode transient immunity (CMTI) of 20 kV/µs. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in an 8-SOIC package.

Digital Isolators Feature Summary

• Capacitive coupling technology enables robust signal isolation without magnetic interference
• Integrated shutdown functionality allows for low-power state management
• High common-mode transient immunity ensures reliable operation in noisy environments
• No start-up initialization required for immediate system readiness

Digital Isolators Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy monitoring
• General-purpose digital communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix D-ISR confirms tape-and-reel packaging versus tube variants. Confirm RoHS compliance status through official Skyworks documentation. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference the full part number against current Skyworks datasheets to validate active status and pinout compatibility before integration into production designs.

Digital Isolators Selection Notes

Select this component when bidirectional isolation is not required, as it supports only forward channels. Choose based on the 2500 Vrms insulation requirement and 1 Mbps speed limit. Consider the 8-SOIC footprint for space-constrained PCB layouts. Evaluate power consumption needs against the specified operating voltage range and thermal characteristics for long-term reliability in industrial or medical applications.

Digital Isolators Part Context

This part belongs to the SI8423 series of digital isolators manufactured by Skyworks Solutions. The series utilizes proprietary capacitive isolation technology to provide high-speed, low-power signal transmission across isolation barriers. The SI8423 variant specifically offers dual-channel configuration, distinguishing it from single or quad-channel counterparts in the broader portfolio.

Digital Isolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.