ISO7240MDWR

Overview

The ISO7240MDWR is a quad-channel digital isolator manufactured by Texas Instruments, utilizing capacitive coupling technology for galvanic isolation. It features four unidirectional channels within a 16-SOIC package (0.295 inch width). The device supports data rates up to 150 Mbps with a maximum propagation delay of 23 ns and pulse width distortion of 2 ns. It operates on a supply voltage range of 3.15 V to 5.5 V and withstands an isolation voltage of 2500 Vrms. The component exhibits a common-mode transient immunity of 25 kV/µs and functions reliably across a temperature range of -40°C to 125°C.

Feature Summary

• Provides galvanic isolation between digital input and output signals using capacitive coupling technology.
• Supports high-speed data transmission with a maximum data rate of 150 Mbps.
• Features four independent unidirectional signal paths for versatile interface applications.

Applications

• Industrial communication interfaces
• Automotive electronic systems
• General-purpose digital isolation

Procurement Notes

Verify the specific suffix 'M' indicates the correct thermal and mechanical specifications for the SOIC-16 package. Confirm that the 'DWR' designation aligns with the required reel or cut tape packaging format for your assembly line. Ensure the component status is active, as older revisions may have different electrical characteristics or availability constraints.

Selection Notes

Select this model when four isolated channels are required for bidirectional or unidirectional data lines. Compare against ISO7241 if bidirectional functionality is needed instead of unidirectional. Consider ISO7240A variants if higher insulation ratings like 4000 Vrms are necessary, though they may offer lower data speeds. Evaluate power consumption requirements against the typical operating current specified in the datasheet.

Part Context

This component belongs to the ISO724x family of high-speed digital isolators from Texas Instruments. It serves as a general-purpose solution for replacing traditional optocouplers in modern designs. The series emphasizes low power consumption and high reliability for demanding industrial environments.

Replacement Considerations

ISO7240ADWG4 offers similar isolation but at a lower data rate of 1 Mbps. ISO7241MDWR provides bidirectional channel capability compared to the unidirectional nature of this part. ISO7240CDWG4 is an older variant with reduced speed capabilities.