ISO7242CDW

Overview

The ISO7242CDW is a quad digital isolator from Texas Instruments, utilizing capacitive coupling technology to provide electrical isolation between circuits. It features four independent channels configured as two forward and two reverse paths, supporting unidirectional data transmission at speeds up to 25 Mbps. The device operates within a supply voltage range of 3.15 V to 5.5 V and offers an insulation voltage rating of 2500 Vrms. It is housed in a 16-pin SOIC package with a 7.50 mm width, designed for surface mount installation. The component supports an operating temperature range from -40°C to +125°C and includes a maximum propagation delay of 50 ns.

Feature Summary

• Provides robust galvanic isolation using high-speed capacitive coupling technology.
• Integrates four independent signal paths for versatile bidirectional or unidirectional system architectures.
• Ensures signal integrity through high common-mode transient immunity capabilities.

Applications

• Industrial communication interfaces requiring isolated data transmission
• Medical equipment signal isolation for safety compliance
• Power electronics control circuit isolation

Procurement Notes

Verify the specific suffix 'CDW' to confirm the tube packaging format and commercial grade temperature range. Confirm that the component status is acceptable for new designs, as availability may vary due to lifecycle changes. Ensure the 16-SOIC footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a quad-channel isolator with moderate data rates is required. It is suitable for applications needing 2500 Vrms isolation without integrated power supplies. Consider the 16-pin SOIC package size and thermal characteristics relative to other available packages in the ISO724x family.

Part Context

This part belongs to the ISO724xC series of high-speed digital isolators. It shares the same core isolation architecture as other variants but differs in channel configuration and speed ratings. The CDW suffix specifically denotes the commercial temperature range and tube packaging, distinguishing it from tape-and-reel or extended temperature options.

Replacement Considerations

The ISO7242CDWR is a direct functional replacement offering identical specifications but supplied in tape-and-reel packaging instead of tubes. Other members of the ISO724x family may serve as alternatives if channel counts or data rates differ from project requirements.