ISO7241CDWR

Overview

The ISO7241CDWR is a quad-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology for signal transmission. It features a 3/1 channel configuration with unidirectional data flow. The device supports a maximum data rate of 25Mbps and offers a common-mode transient immunity (CMTI) of 25kV/µs. It operates within a supply voltage range of 3.15V to 5.5V and provides 2500Vrms isolation voltage. Key timing parameters include a maximum propagation delay of 42ns and typical rise/fall times of 2ns. It is housed in a 16-SOIC package and functions across an industrial temperature range of -40°C to 125°C.

Feature Summary

• Provides galvanic isolation via capacitive coupling technology for robust signal integrity.
• Features high common-mode transient immunity to withstand rapid voltage changes.
• Supports unidirectional data transmission with configurable channel layouts.

Applications

• Industrial communication interfaces requiring electrical isolation
• Medical equipment signal conditioning circuits
• Automotive electronic control unit (ECU) isolation

Procurement Notes

Verify the specific suffix 'CDWR' to confirm the SOIC-16 package and tape-and-reel packaging format. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number against official Texas Instruments documentation to validate authenticity and current production status before procurement.

Selection Notes

Select this component when a quad-channel isolator with a 3/1 split is required for unidirectional applications. Consider the 25Mbps data rate and 25kV/µs CMTI specifications for high-speed noise environments. Evaluate the 16-SOIC footprint compatibility against existing PCB designs and ensure the operating temperature range aligns with system thermal constraints.

Part Context

This device belongs to the ISO7241C family of digital isolators. It shares architectural similarities with other members like the ISO7241MDWR but differs in speed and isolation ratings. The CDWR variant specifically denotes the standard speed version in a surface-mount package, distinct from higher-speed or alternative package options within the broader isolation product line.

Replacement Considerations

Direct substitutes may include ISO7241MDWR for higher speed requirements or ISO7231CDWR for different channel configurations. Verify pinout compatibility and electrical parameter overlaps before substitution. Consult official cross-reference guides for validated alternatives.