ISO7820DWW

Overview

The ISO7820DWW is a dual-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features capacitive coupling isolation with a rated insulation voltage of 5700 Vrms and supports data rates up to 100 Mb/s. The device operates on a supply voltage between 2.25 V and 5.5 V, drawing a typical operating current of 11.9 mA. Key electrical characteristics include a propagation delay of 11.7 ns and a common-mode transient immunity of 100 kV/µs. It functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides high-reliability galvanic isolation via capacitive coupling technology
• Supports unidirectional signal transmission for dual-channel applications
• Ensures signal integrity with high common-mode transient immunity

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy monitoring

Procurement Notes

Verify the specific suffix 'DWW' to confirm the SOIC-16 package and tape-and-reel or tube availability as required by your assembly process. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement orders to ensure regulatory adherence.

Selection Notes

Select this component when dual-channel isolation is required with a 5700 Vrms rating. It is suitable for designs needing 100 Mb/s data throughput and operation across extended industrial temperature ranges. Ensure the unidirectional channel configuration aligns with the system's signal flow requirements.

Part Context

This part belongs to the ISO7820 series of high-performance digital isolators. It shares the same isolation architecture and pinout compatibility with other members of the family, such as the ISO7821, which offers bidirectional capabilities. The DWW suffix specifically denotes the wide-body SOIC-16 package designed for enhanced creepage and clearance distances.

Replacement Considerations

The ISO7821DWW serves as a functional substitute if bidirectional communication channels are required instead of unidirectional ones. Both parts share identical packaging and isolation ratings, ensuring mechanical compatibility during board-level replacements.