ISO7240CDWG4

Overview

The ISO7240CDWG4 is a quad-channel digital isolator from the ISO7240C series, manufactured by Texas Instruments. It features four unidirectional channels with a data rate of 25 Mbps and an insulation voltage of 2500 Vrms. The device utilizes capacitive coupling technology and operates within a supply voltage range of 3.15 V to 5.5 V. It has a typical propagation delay of 15 ns and a maximum operating temperature of 125°C. The component is housed in a 16-pin SOIC package (DW) and is currently marked as obsolete.

Feature Summary

• Provides galvanic isolation for four independent signal paths using capacitive coupling technology.
• Supports high-speed data transmission up to 25 Mbps with low propagation delay.
• Ensures safety compliance through a 2500 Vrms insulation rating.

Applications

• Industrial communication interfaces requiring signal isolation
• Medical equipment signal conditioning
• Power electronics control circuits

Procurement Notes

This component is officially listed as obsolete and will be discontinued by the manufacturer. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or identifying approved replacement parts. Availability is limited, and lead times may vary significantly. Designers are advised to transition to alternative components to ensure long-term supply chain stability.

Selection Notes

Select this part only if legacy compatibility is required, as it is no longer in production. Verify that the 2500 Vrms isolation rating meets system safety requirements. Ensure the SOIC-16 package fits the PCB layout constraints. Consider the 25 Mbps speed limit for application bandwidth needs. Evaluate alternative active parts from the same family for new designs.

Part Context

The ISO7240CDWG4 belongs to the ISO7240C family of high-speed quad digital isolators. It shares architectural similarities with other members like the ISO7240CDW but differs in packaging and specific electrical tolerances. The 'G4' suffix indicates RoHS compliance and green material status. It serves as a bridge between isolated domains in mixed-signal systems.

Replacement Considerations

Check for direct substitutes such as ISO7240CDWR or ISO7240CDWRG4 which offer similar specifications in tape-and-reel packaging. Verify pinout compatibility before substitution. Consult the manufacturer's obsolescence notice for recommended alternatives.