ISO7240MDWRG4

Overview

The ISO7240MDWRG4 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 150 Mbps and offers an insulation voltage of 2500 Vrms. Operating within a supply voltage range of 3.15 V to 5.5 V, it exhibits a typical propagation delay of 15 ns. The component is housed in a 16-pin SOIC (DW) package and functions reliably across an industrial temperature range of -40°C to +125°C.

Feature Summary

• Implements capacitive coupling isolation for robust signal integrity
• Provides high common-mode transient immunity for noisy environments
• Supports flexible unidirectional channel configurations

Applications

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

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the 'W' suffix corresponds to the tape-and-reel packaging format required for automated assembly processes. Ensure the part number matches the exact speed grade and channel configuration needed for the design. Cross-reference the datasheet revision history for any recent parameter updates or pinout changes before finalizing procurement specifications.

Selection Notes

Select this component when a quad-channel isolator with 150 Mbps performance is required in a standard SOIC-16 footprint. It is suitable for designs needing 2500 Vrms basic isolation between isolated domains. Consider the 3:1 channel split if asymmetric data flow is necessary. Evaluate the power consumption and thermal characteristics against system constraints. Verify compatibility with logic levels operating between 3.15 V and 5.5 V.

Part Context

This part belongs to the ISO7240A family of quad digital isolators. It shares the same physical package and isolation architecture as other variants in the series but differs in speed grade and channel directionality. The 'M' designation typically denotes a specific speed bin or performance tier within the product line. It serves as a general-purpose solution for replacing traditional optocouplers in modern interface applications.

Replacement Considerations

Direct replacements include ISO7240MDW and ISO7240MDWG4. These parts share identical electrical characteristics and pinouts. Verify that substitute parts maintain the same 150 Mbps data rate and 2500 Vrms insulation rating. Ensure the replacement package type matches the existing PCB layout requirements.