ADUM5242ARZ-RL7

Overview

The ADUM5242ARZ-RL7 is a dual-channel digital isolator from Analog Devices, featuring integrated isoPower DC/DC conversion. It provides 2500 Vrms isolation using magnetic coupling technology. The device supports unidirectional data transmission at speeds up to 1 Mb/s with a typical propagation delay of 70 ns. It operates on supply voltages ranging from 2.7 V to 5.5 V and delivers up to 50 mW of isolated power. The component is housed in an SOIC-8 package and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates dual-channel signal isolation with on-chip DC/DC converter for space-constrained designs
• Utilizes iCoupler magnetic coupling technology for high common-mode transient immunity
• Provides galvanic isolation between input and output domains without external magnetics

Applications

• Isolated power supply control circuits
• Industrial communication bus interfaces
• Medical equipment signal isolation

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm the ARZ designation corresponds to lead-free RoHS compliance and commercial grade temperature rating. Ensure the supplier documentation matches the manufacturer's official datasheet specifications for voltage and isolation ratings before integration.

Selection Notes

Select this component when both signal isolation and isolated power generation are required in a single package. It is suitable for applications where board space is limited and external isolated power supplies are impractical. Compare performance against standard isolators if higher power output or bidirectional channels are needed.

Part Context

This part belongs to the ADUM5242 family of digital isolators. It is distinct from non-isolated logic devices and standard isolators lacking integrated power conversion. The series is designed for robust noise immunity in electrically noisy environments.

Replacement Considerations

Direct substitutes include other ADUM524x variants with different resistance or directionality options. Verify pin compatibility and thermal performance when replacing with similar isoPower isolators from the same manufacturer.