ADUM7643CRQZ

Overview

The ADUM7643CRQZ is a six-channel digital isolator utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports bidirectional data transmission at speeds up to 25 Mb/s. The device provides an isolation voltage of 1000 Vrms and exhibits a common-mode transient immunity of 15 kV/µs. Typical propagation delay is 14 ns, with rise and fall times of 2.8 ns. It functions reliably across an operating temperature range of -40°C to +105°C and is housed in a 20-lead QSOP package.

Feature Summary

• Integrates six independent channels for high-density signal isolation
• Employs on-chip transformer-based magnetic coupling for galvanic isolation
• Provides high common-mode transient immunity for noisy environments
• Supports bidirectional data flow without external direction control

Applications

• Industrial automation communication buses
• Medical equipment signal isolation
• Power electronics gate drive interfaces
• Inverter and motor control systems

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm channel configuration and speed grade. Ensure the package type matches the required PCB footprint. Confirm RoHS compliance status through current datasheets or manufacturer notices before finalizing procurement specifications.

Selection Notes

Select this component when six isolated channels are required within a single package. Consider the 25 Mb/s data rate capability for high-speed applications. Evaluate the 1000 Vrms isolation rating against system safety requirements. Compare power consumption characteristics against alternative isolators if energy efficiency is critical.

Part Context

This part belongs to the ADUM764x family of digital isolators from Analog Devices. The series utilizes proprietary iCoupler technology to replace traditional optocouplers. Other variants in the family may differ in channel count, data rate, or polarity configuration while sharing similar isolation principles.

Replacement Considerations

Cross-reference with ADUM7643ARQZ for lower speed options. Verify pin compatibility with existing designs when substituting. Check for updated assembly site transfer notices regarding manufacturing changes.