ISO7240CDW

Overview

The ISO7240CDW is a quad-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology. It features four forward channels and zero reverse channels, supporting data rates up to 25 Mbps with a typical propagation delay of 15 ns. The device operates within a supply voltage range of 3.3 V to 5 V and provides an isolation voltage of 4000 Vrms. It is housed in a 16-SOIC package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation between circuits using high-speed capacitive coupling technology.
• Offers four independent unidirectional signal paths for parallel data transmission.
• Ensures signal integrity through high common-mode transient immunity capabilities.

Applications

• Industrial communication bus isolation
• Medical equipment signal isolation
• Power metering systems

Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-16 tube packaging configuration. Confirm that the component status reflects current availability as some sources indicate end-of-life planning. Ensure compliance with RoHS directives by checking the detailed certification documentation provided by the manufacturer before finalizing procurement orders.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required at speeds up to 25 Mbps. The wide operating temperature range makes it suitable for harsh industrial environments. Verify that the 4000 Vrms isolation rating meets the safety requirements of the application circuit compared to lower-rated alternatives.

Part Context

This part belongs to the ISO7240C series of high-speed digital isolators. It serves as a general-purpose interface solution for replacing traditional optocouplers in modern designs. The family focuses on providing higher speed and precision with improved magnetic immunity compared to legacy isolation technologies.

Replacement Considerations

ISO7240CDWR is available as a tape-and-reel alternative offering identical electrical specifications but different packaging for automated assembly processes.