ISO7821FDWW

Overview

The ISO7821FDWW is a dual-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features capacitive coupling for signal transmission with a data rate of 100 Mb/s and an insulation voltage of 5700 Vrms. The device operates on a supply voltage between 2.25 V and 5.5 V, drawing 7.5 mA of current. It exhibits a propagation delay of 11 ns and supports unidirectional channels. The component functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides high-performance isolation using capacitive coupling technology
• Supports bidirectional or unidirectional signal transmission configurations
• Delivers reinforced insulation ratings for safety-critical applications

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing enhanced electrical safety barriers
• Power metering circuits for accurate signal monitoring
• Inverter drives for motor control isolation

Procurement Notes

Verify the specific suffix FDWW corresponds to the tube packaging format when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the SOIC-16 footprint and thermal requirements for the intended operating environment.

Selection Notes

Select this component for designs requiring dual-channel isolation with high reliability. Consider the 100 Mb/s data rate and 5700 Vrms insulation rating against system requirements. Evaluate the SOIC-16 package constraints and operating temperature range for environmental suitability.

Part Context

This part belongs to the ISO7821 family of high-performance digital isolators. It shares architectural similarities with other members like the ISO7821FDW but differs in packaging configuration. The series is designed for robust performance in noisy environments where signal integrity and isolation are paramount.

Replacement Considerations

Direct substitutes include ISO7821FDW and ISO7821FDWR. Verify pinout compatibility and packaging differences before substitution. Ensure replacement parts meet the same insulation and data rate specifications.