ISO7720FDW

Overview

The ISO7720FDW is a Texas Instruments digital isolator featuring two forward channels and zero reverse channels in an 8-pin SOIC package. It operates with a supply voltage range of 2.25 V to 5.5 V and provides 5000 Vrms isolation voltage. The device supports data rates up to 100 Mb/s with a maximum propagation delay of 16 ns. It utilizes capacitive coupling technology and offers a common-mode transient immunity of 85 kV/µs. The component functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides robust electromagnetic compatibility through high common-mode transient immunity.
• Utilizes capacitive coupling technology for signal transmission across the isolation barrier.
• Features unidirectional channel configuration for dedicated input-output signal paths.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced insulation barriers
• Power metering circuits for accurate signal monitoring

Procurement Notes

Verify the specific suffix against official documentation, as the ISO7720FDW designation may indicate obsolete status or distinct packaging variants compared to active counterparts like the ISO7720FDWR. Confirm availability through authorized distributors and ensure compliance with RoHS directives before procurement integration.

Selection Notes

Select this component when a dual-channel unidirectional isolator with 5000 Vrms reinforcement is required. Ensure the 8-pin SOIC footprint fits the design constraints. Verify that the 100 Mb/s data rate meets system timing requirements and that the operating voltage aligns with the target logic levels.

Part Context

This part belongs to the ISO7720 series of digital isolators from Texas Instruments. It is designed for applications demanding high reliability and noise immunity. The series typically includes variants with different pin counts and channel configurations to suit diverse interface needs.

Replacement Considerations

The ISO7720FDWR is listed as a manufacturer-recommended substitute. Verify pinout compatibility and electrical specifications before substitution.