ISO7241CDWRG4

Overview

The ISO7241CDWRG4 is a quad-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology for signal transmission. It features a 3:1 channel configuration with three forward and one reverse path. The device supports data rates up to 25 Mbps and offers an isolation voltage of 2500 Vrms. It operates within a supply voltage range of 2.8 V to 5 V and maintains a typical propagation delay of 15 ns. The component functions reliably across an extended temperature range from -40°C to +125°C and is housed in a 16-pin SOIC package.

Feature Summary

• Provides galvanic isolation via high-speed capacitive coupling architecture
• Supports bidirectional or unidirectional signal transmission modes
• Ensures high common-mode transient immunity for noisy environments

Applications

• Industrial communication bus interfaces
• Medical equipment signal isolation
• Power metering and energy monitoring systems

Procurement Notes

Verify the RoHS compliance status through official manufacturer documentation before integration. Confirm that the SOIC-16 package dimensions match your PCB footprint requirements. Ensure the operating voltage aligns with the specified 2.8 V to 5 V range. Check for moisture sensitivity levels to determine proper storage and handling procedures during assembly.

Selection Notes

Select this component when a quad-channel isolator with 25 Mbps speed is required. It is suitable for applications needing 2500 Vrms isolation in a compact surface-mount package. Consider the 3:1 channel split if asymmetric data flow is needed. Evaluate power consumption against system constraints given the 18 mA operating current.

Part Context

This part belongs to the ISO7241C series of digital isolators. It shares the same pinout and basic functionality as the ISO7241CDWR but includes specific manufacturing or environmental certifications indicated by the suffix. It is designed to replace legacy optocouplers in modern high-speed digital isolation applications.

Replacement Considerations

The ISO7241CDWR is the non-RoHS compliant predecessor. For higher speed requirements, consider the ISO7241MDWRG4 which supports 150 Mbps. For increased isolation voltage, the ISO7341CDWR offers 3000 Vrms.