ADUM7643CRQZ-RL7

Overview

The ADUM7643CRQZ-RL7 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 data rates up to 25 Mb/s. The device provides an insulation voltage of 1000 Vrms and exhibits a common-mode transient immunity of 15 kV/µs. Key electrical parameters include a propagation delay of 14 ns, with rise and fall times of 2.8 ns. It functions in bidirectional mode across an operating temperature range of -40°C to +105°C.

Feature Summary

• Six independent bidirectional channels for high-density signal isolation
• iCoupler magnetic coupling technology eliminates the need for external transformers
• High common-mode transient immunity ensures reliable operation in noisy environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safety-certified signal separation
• Power electronics control circuits with high-voltage noise rejection

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing components. Confirm that the CRQZ designation corresponds to the commercial temperature grade and QSOP-20 package variant. Ensure compatibility with existing board layouts regarding the 20-pin surface-mount footprint before finalizing procurement orders.

Selection Notes

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

Part Context

This part belongs to the ADUM7643 series of general-purpose digital isolators from Analog Devices. It shares architectural similarities with other iCoupler devices but offers a specific channel count and speed profile. The series is designed to replace traditional optocouplers in various interface applications.

Replacement Considerations

The ADUM7643CRQZ is a tube-packaged equivalent offering identical electrical specifications without the reel format. Verify pinout compatibility and thermal performance when substituting between packaging types.