ISO7231CDW

Overview

The ISO7231CDW is a general-purpose digital isolator from Texas Instruments utilizing capacitive coupling technology. It features three independent channels with a 2/1 input-output configuration, providing bidirectional signal transmission capability within the specified channel layout. The device offers an isolation voltage of 2500Vrms and supports data rates up to 25Mbps. Key electrical parameters include a maximum propagation delay of 42ns, a common-mode transient immunity of 25kV/µs, and a typical rise/fall time of 2ns. It operates on a supply voltage range of 3.15V to 5.5V and functions within a temperature range of -40°C to 125°C.

Feature Summary

• Capacitive coupling technology for robust signal isolation
• High common-mode transient immunity of 25kV/µs
• General-purpose design suitable for diverse interface applications
• Wide operating temperature range for industrial environments

Applications

• Industrial process control systems
• Measurement and sensing equipment
• Power management circuits
• Digital isolated gate driver interfaces

Procurement Notes

Verify the specific suffix 'CDW' against the manufacturer's official datasheet to confirm package type (SOIC-16) and tape/reel specifications. Ensure compatibility with the required isolation voltage ratings and thermal management requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component when a general-purpose solution with high speed and strong transient immunity is required. The 25Mbps data rate and 25kV/µs CMTI make it suitable for noisy industrial environments. Consider the 16-SOIC package constraints and the 3-channel capacity relative to system interface needs.

Part Context

This part belongs to the ISO7231 family of digital isolators from Texas Instruments. It represents a standard commercial-grade variant designed for general-purpose isolation tasks. The family utilizes proprietary capacitive coupling technology to provide reliable signal transmission across isolation barriers without magnetic components.

Replacement Considerations

ISO7231CDWR