ISO7240MDW

Overview

The ISO7240MDW is a quad-channel, unidirectional digital isolator from Texas Instruments utilizing capacitive coupling technology. It operates within a supply voltage range of 3.15 V to 5.5 V and supports data rates up to 150 Mbps. The device provides an isolation voltage of 2500 Vrms and features a common-mode transient immunity (CMTI) of 25 kV/µs. Propagation delay is typically 23 ns with a pulse width distortion of 2 ns maximum. It functions reliably across an operating temperature range of -40°C to +125°C and is housed in a 16-pin SOIC package.

Feature Summary

• Provides four independent unidirectional signal channels for digital isolation
• Utilizes high-speed capacitive coupling for reliable signal transmission
• Offers high common-mode transient immunity to prevent false triggering
• Designed for general-purpose interface applications requiring robust isolation

Applications

• Industrial automation systems
• Medical equipment interfaces
• Power metering circuits
• Inverter motor control systems

Procurement Notes

Verify the specific suffix 'DW' to confirm the SOIC-16 package variant. Confirm current availability status as this component may be subject to end-of-life notices or discontinuation by the manufacturer. Ensure compatibility with existing PCB footprints and design specifications before procurement.

Selection Notes

Select this component when four isolated channels are required for unidirectional data transfer. Consider the 150 Mbps speed and 2500 Vrms isolation rating against system requirements. Evaluate the SOIC-16 package constraints and thermal performance within the specified temperature range compared to alternative packages.

Part Context

This part belongs to the ISO7240 family of quad digital isolators. It shares architectural similarities with other members like the ISO7240CDW and ISO7240ADWG4 but differs in speed ratings and specific electrical characteristics. The family utilizes Texas Instruments' capacitive isolation technology for general-purpose interface needs.

Replacement Considerations

Check for direct pin-compatible alternatives within the ISO7240 series such as ISO7240CDW or ISO7240ADWG4. Verify that any substitute matches the required data rate, isolation voltage, and package dimensions. Consult official datasheets for parameter comparisons.