ISO7820FDWW

Overview

The ISO7820FDWW is a dual-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It operates on a supply voltage range of 2.25 V to 5.5 V with a typical quiescent current of 11.9 mA per side. The device supports data rates up to 100 Mb/s and provides an insulation voltage of 5700 Vrms via capacitive coupling technology. Key timing parameters include a propagation delay of 11.7 ns and rise/fall times of 3.9 ns. It functions within a temperature range of -55°C to +125°C and lacks a shutdown pin.

Feature Summary

• Provides high-voltage isolation between circuits using capacitive coupling technology for signal integrity.
• Supports bidirectional or unidirectional data transmission at speeds up to 100 Mb/s.
• Operates reliably across extended industrial temperature ranges without requiring external components.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment signal interfaces
• Power metering and energy monitoring circuits

Procurement Notes

Verify the specific suffix FDWW indicates the SOIC-16 tube packaging configuration. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

Selection Notes

Select this component when dual-channel isolation is required within a standard SOIC footprint. Compare against ISO7842FDWW if quad-channel capacity is needed, or ISO7821FDWW for single-channel applications. Evaluate power consumption differences relative to system battery life requirements. Ensure the 5700 Vrms rating meets the specific safety standards of the target application environment.

Part Context

This part belongs to the ISO78xx family of high-performance digital isolators designed for robust noise immunity. It complements other variants like ISO7820FDW and ISO7820FDWWR, differing primarily in package type and reel versus tube packaging configurations. The series is engineered for demanding environments where signal integrity and electrical safety are critical.

Replacement Considerations

ISO7820FDW serves as a leaded alternative in the same package. ISO7820FDWWR offers identical functionality but in tape-and-reel format for automated assembly. Verify pin compatibility and thermal characteristics when substituting.