ISO7221CQDRQ1

Overview

The ISO7221CQDRQ1 is a dual-channel automotive-grade digital isolator manufactured by Texas Instruments. It utilizes capacitive coupling technology to provide electrical isolation between circuits. The device supports a data rate of 25 Mbps and operates within a supply voltage range of 2.8 V to 5.5 V. It features a 2500 Vrms isolation rating and is qualified under the AEC-Q100 standard for automotive applications. The component is housed in an 8-pin SOIC package with a width of 3.90 mm, designed for surface-mount installation.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• High-speed data transmission capability at 25 Mbps
• Robust electromagnetic interference immunity via capacitive coupling

Applications

• Automotive electronic control units (ECUs)
• In-vehicle communication networks
• Industrial automation systems requiring high reliability

Procurement Notes

Verify that the ordering suffix matches the required data rate variant, as the 'C' designation indicates 25 Mbps performance distinct from other speed grades in the family. Confirm the package type corresponds to the specific PCB footprint requirements. Ensure the component meets the necessary environmental specifications for the intended deployment environment.

Selection Notes

Select this component when high-speed signal integrity is critical within automotive or industrial environments. The 25 Mbps rate suits applications demanding faster data throughput than lower-speed isolators provide. Consider the 8-pin SOIC form factor for space-constrained designs requiring dual-channel isolation without increasing board area significantly.

Part Context

This part belongs to the ISO722x-Q1 series of dual-channel digital isolators from Texas Instruments. The series offers options for different signaling rates, including 1 Mbps and 25 Mbps variants. The ISO7221CQDRQ1 specifically addresses the need for higher bandwidth in isolated communication links while maintaining automotive durability and safety compliance.

Replacement Considerations

ISO7221CDRG4 serves as a direct alternative within the same product family, offering identical 25 Mbps performance and packaging specifications.