SI88340ED-AS

Digital Isolators Overview

The SI88340ED-AS is a general-purpose digital isolator from Skyworks Solutions, featuring four unidirectional channels in a 24-SOIC package. It utilizes capacitive coupling technology to provide 5000 Vrms isolation and supports data rates up to 100 Mb/s. The device operates on a supply voltage range of 3 V to 5.5 V with a typical operating current of 13.3 mA. Key electrical parameters include a propagation delay of 18 ns, rise/fall times of 2.5 ns, and a common-mode transient immunity of 40 kV/µs. It functions within an industrial temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides robust galvanic isolation via capacitive coupling technology for signal integrity
• Features four independent unidirectional channels for multi-signal transmission
• Ensures high noise immunity with significant common-mode transient rejection capabilities
• Operates reliably across extended industrial temperature ranges without shutdown functionality

Digital Isolators Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation barriers
• Power electronics control circuits with high-voltage separation needs
• Automotive electronic modules demanding reliable data isolation

Digital Isolators Procurement Notes

Verify the specific suffix designation against official Skyworks documentation to confirm pinout and functional compatibility. Ensure that the selected component matches the required insulation voltage ratings for your safety standards. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Cross-reference the ordering part number with the manufacturer's latest datasheet to avoid discrepancies in package dimensions or electrical characteristics.

Digital Isolators Selection Notes

Select this component when four unidirectional isolated channels are required within a compact SOIC footprint. Consider the 5000 Vrms isolation rating for applications involving high potential differences between circuit domains. Evaluate the 100 Mb/s data rate capability against system bandwidth requirements. Verify that the 3 V to 5.5 V supply range aligns with the target logic voltage levels. Assess thermal performance within the specified -40°C to +125°C operational envelope.

Digital Isolators Part Context

This device belongs to the Si8834x family of digital isolators designed for general-purpose applications. It integrates capacitive sensor technology to achieve high reliability and low power consumption. The family offers various channel configurations and polarity options to suit diverse interface requirements. The SI88340ED-AS specifically addresses needs for unidirectional signal transfer with standard isolation specifications.

Digital Isolators Replacement Considerations

Check for SI88340ED-IS as a potential variant within the same series. Verify if other Skyworks isolators with similar channel counts and isolation ratings meet the design constraints. Ensure any substitute maintains compatible package dimensions and electrical parameters.