ADUM7441CRQZ

Overview

The ADUM7441CRQZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology. It features four independent channels with bidirectional signal capability. The device supports data rates up to 25 Mb/s and provides an insulation voltage of 1000 Vrms. It operates within a supply voltage range of 3 V to 5.5 V. Typical propagation delay is 50 ns, with rise and fall times of 2.8 ns. The component functions reliably between -40°C and +105°C. It is housed in a QSOP-16 package.

Feature Summary

• Integrates four isolated channels using monolithic air core transformer technology for high-speed digital communication.
• Provides robust galvanic isolation with a 1000 Vrms insulation rating to protect sensitive circuitry.
• Supports bidirectional data transmission with low propagation delay for precise timing applications.

Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits with high common-mode noise

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure the part number matches the required speed grade and operating temperature range. Cross-reference the manufacturer's latest datasheet for any revisions or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when four isolated channels are required at speeds up to 25 Mb/s. Compare power consumption figures against similar isolators if battery life is critical. Confirm that the QSOP-16 footprint fits the PCB layout constraints. Verify that the 1000 Vrms isolation rating meets the safety standards of the target application environment.

Part Context

This part belongs to the ADuM744x family of quad-channel digital isolators. It shares the same physical package and basic functionality as other variants in the series but differs in performance specifications such as data rate and power consumption. The CRQZ designation indicates a specific commercial temperature range and packaging configuration.

Replacement Considerations

Check for direct substitutes like the ADUM7441ARQZ for lower speed requirements. Verify pin compatibility and electrical parameters before swapping. Consult the manufacturer's substitution guide for approved alternatives.