ISO7240CDWR

Overview

The ISO7240CDWR is a quad-channel digital isolator manufactured by Texas Instruments, utilizing capacitive coupling technology. It provides 2500Vrms isolation voltage and supports data rates up to 25Mbps with a common-mode transient immunity of 25kV/µs. The device features unidirectional signal transmission across four channels, operating within a supply voltage range of 3.15V to 5.5V. It exhibits maximum propagation delays of 42ns and typical rise/fall times of 2ns. Designed for robust performance, it functions reliably in temperatures ranging from -40°C to 125°C and is housed in a 16-SOIC package.

Feature Summary

• Provides high-speed digital signal isolation with 25Mbps data rate capability
• Offers strong common-mode transient immunity of 25kV/µs for noise rejection
• Features unidirectional channel configuration for simple interface integration
• Ensures reliable operation across extended industrial temperature ranges

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe signal transmission between circuits
• Power electronics interfaces for motor control applications
• General-purpose isolated communication links in noisy environments

Procurement Notes

Verify the specific suffix CDWR indicates tape-and-reel packaging when ordering. Confirm the manufacturer is Texas Instruments to ensure component authenticity. Check current lifecycle status as distribution availability may vary. Ensure the required isolation voltage rating of 2500Vrms meets system safety standards before procurement.

Selection Notes

Select this component when four independent unidirectional isolation channels are required. Choose based on the need for 25Mbps speed and 25kV/µs CMTI performance. Consider the 16-SOIC footprint for PCB layout constraints. Verify that the 3.15V to 5.5V supply range aligns with the target system logic levels.

Part Context

This part belongs to the ISO7240C family of quad digital isolators from Texas Instruments. It shares the SOIC-16 package form factor with other variants like ISO7240CDW but differs in packaging format. The series is designed for general-purpose isolation tasks where high reliability and moderate speed are prioritized over ultra-high bandwidth options.

Replacement Considerations

ISO7240CDW is a tube-packaged equivalent with identical electrical specifications. ISO7240CDWG4 represents the lead-free version of the same functional device. These parts maintain pin compatibility and performance metrics for direct substitution in existing designs.