ISO7241MDW

Overview

The ISO7241MDW is a quad-channel digital isolator manufactured by Texas Instruments, utilizing capacitive coupling technology for signal transmission. It features a 3/1 channel configuration with unidirectional data flow and operates within a supply voltage range of 3.15V to 5.5V. The device provides an isolation voltage rating of 2500Vrms and supports a data rate of 150Mbps. It exhibits a common-mode transient immunity of 25kV/µs, with maximum propagation delays of 23ns for both low-to-high and high-to-low transitions. The component is housed in a 16-SOIC package and functions reliably across an operating temperature range of -40°C to 125°C.

Feature Summary

• Capacitive coupling technology enables robust signal isolation without magnetic components.
• High common-mode transient immunity ensures reliable operation in noisy environments.
• Quad-channel architecture supports multiple independent signal paths in a single package.

Applications

• Industrial communication interfaces requiring galvanic isolation
• Medical equipment signal conditioning circuits
• Power electronics control systems

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm availability of active replacements such as the ISO7241MDWR or ISO7241MDWRG4 from Texas Instruments. Ensure that any substitute component matches the required SOIC-16 package dimensions and electrical specifications for your design. Check current manufacturer lifecycle notices for discontinuation timelines.

Selection Notes

Select this component when a quad-channel isolator with 150Mbps speed and 2500Vrms isolation is required. Consider the ISO7241MDWR if tape-and-reel packaging is preferred over tubes. Evaluate the ISO7841 series if higher isolation voltage ratings are necessary for the application. Ensure the 3.15V to 5.5V supply range aligns with the system power architecture.

Part Context

The ISO7241MDW belongs to the ISO7241 family of general-purpose digital isolators from Texas Instruments. This family utilizes capacitive sensing technology to provide high-speed data transmission across isolation barriers. The MDW suffix indicates a tube package variant of the SOIC-16 footprint. This series is designed for applications demanding high reliability and noise immunity in industrial and medical settings.

Replacement Considerations

The ISO7241MDWR is a direct functional replacement with identical electrical characteristics but in tape-and-reel packaging. The ISO7241MDWRG4 is also available as a lead-free compliant alternative. Verify pinout compatibility and package dimensions when transitioning to these substitutes.