ISO7421AQDRQ1

Overview

The ISO7421AQDRQ1 is a qualified automotive digital isolator featuring two independent channels with unidirectional signal transmission. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 50 Mbps. The device provides 2500 Vrms isolation strength and exhibits a common-mode transient immunity of 25 kV/µs. Packaged in an 8-pin SOIC (DW) format, it functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• AEC-Q100 qualified for automotive applications ensuring reliability under strict environmental conditions
• High-speed capacitive coupling technology enabling robust signal integrity at 50 Mbps
• Integrated low-power design optimized for energy-efficient system architectures

Applications

• Automotive gateway systems requiring isolated communication interfaces
• In-vehicle network nodes utilizing CAN or LIN protocols
• Industrial control modules demanding high common-mode noise rejection

Procurement Notes

Verify the specific suffix 'QDRQ1' confirms AEC-Q100 qualification and tape-and-reel packaging. Ensure compatibility with 3.3 V or 5 V logic levels on both sides. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this component when automotive certification is mandatory for digital isolation needs. It serves as a suitable replacement for standard ISO7421 variants in environments requiring extended temperature stability. Evaluate channel count requirements carefully as this model offers exactly two unidirectional paths.

Part Context

This part belongs to the Texas Instruments ISO7421 family of general-purpose digital isolators. It shares architectural similarities with the ISO7421D but adds automotive-grade validation. The series focuses on providing reliable galvanic isolation for noisy electrical environments without compromising data throughput.

Replacement Considerations

ISO7421EDR and ISO7421FEDR are functional equivalents within the same package but lack automotive qualification. Verify that the loss of AEC-Q100 certification meets your application requirements before substituting.