ADUM7642ARQZ

Overview

The ADUM7642ARQZ is a six-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides 1000Vrms isolation voltage with a common-mode transient immunity of 15kV/µs. The device supports data rates up to 1Mbps and operates on a single supply voltage ranging from 3V to 5.5V. It features a 4/2 channel input/output configuration in a 20-SSOP package. The component functions without an isolated power supply and maintains operation across a temperature range of -40°C to 105°C.

Feature Summary

• Six-channel unidirectional digital isolation using proprietary iCoupler magnetic coupling technology
• High common-mode transient immunity of 15kV/µs for robust noise rejection
• Operates without requiring an isolated power supply on the secondary side
• Supports bidirectional logic control with low propagation delay characteristics

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment signal transmission interfaces
• Power electronics gate drive circuits
• Inverters and motor control applications

Procurement Notes

Verify the specific suffix ARQZ to confirm the 1Mbps data rate variant, as other suffixes like CRQZ indicate different speeds. Ensure the 20-SSOP package width matches your PCB footprint requirements. Confirm RoHS compliance status if required by your manufacturing standards. Check availability through authorized distributors as stock levels may vary.

Selection Notes

Select this component when six isolated channels are needed within a single package to save board space. Choose the ARQZ variant specifically for applications limited to 1Mbps data throughput. Consider the 1000Vrms isolation rating against your system's voltage stress requirements. Evaluate the 3V to 5.5V supply range compatibility with your logic levels before integration.

Part Context

This part belongs to the ADuM764x family of general-purpose digital isolators. It shares the same physical package and basic isolation architecture with variants offering higher data rates or different channel configurations. The family utilizes silicon dioxide insulation layers integrated with copper coils for signal transmission.

Replacement Considerations

The ADUM7643ARQZ is a confirmed substitute within the same family, sharing identical packaging and isolation ratings. Verify that the specific data rate and channel configuration of the replacement match your circuit design requirements before swapping components.