ADUM1442ARQZ-RL7

Digital Isolators Overview

The ADUM1442ARQZ-RL7 is a micropower quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides four independent bidirectional channels with a data rate of 2 Mbps and a common-mode transient immunity of 25 kV/µs. The device operates on supply voltages ranging from 2.25 V to 3.6 V for both logic sides. It features low propagation delay and pulse width distortion, housed in a 16-pin QSOP package.

Digital Isolators Feature Summary

• Integrates four isolated channels using proprietary iCoupler magnetic coupling technology
• Provides high common-mode transient immunity for reliable signal transmission in noisy environments
• Supports bidirectional data flow across all four channels simultaneously
• Operates within a wide industrial temperature range without requiring external isolation components

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and sensors
• Medical equipment needing safe separation between patient-connected circuits and processing units
• Power electronics interfaces for monitoring and control in motor drives
• Test and measurement instruments requiring precise signal isolation

Digital Isolators Procurement Notes

Verify the specific suffix RL7 confirms tape-and-reel packaging when ordering. Ensure the QSOP-16 footprint matches the design layout. Confirm voltage ratings align with system requirements. Check for recent product change notifications regarding wire bond material updates. Validate RoHS compliance status for the target region.

Digital Isolators Selection Notes

Choose this component when bidirectional communication is required across multiple isolated channels. The 2 Mbps speed suits moderate data rates typical in industrial protocols. Consider the 2500 Vrms isolation rating for safety standards. Evaluate power consumption against battery-operated constraints. Compare channel count needs against other iCoupler variants.

Digital Isolators Part Context

This part belongs to the ADuM144x family of micropower digital isolators. It shares architectural similarities with ADUM1440 and ADUM1441 but offers four channels instead of two or one. The RL7 suffix denotes reel packaging for automated assembly. It complements Analog Devices' broader portfolio of isolation solutions.

Digital Isolators Replacement Considerations

ADUM1440ARQZ-RL7 offers two channels. ADUM1441ARQZ-RL7 provides three channels. ADUM1445ARQZ-RL7 delivers higher performance specifications. Verify pinout compatibility before substitution.