ADUM5240ARZ-RL7

Overview

The ADUM5240ARZ-RL7 is a dual-channel digital isolator from Analog Devices, featuring an integrated isoPower DC-to-DC converter. It provides electrical isolation for signal and power transmission in a narrow-body 8-lead SOIC package. The device supports data rates up to 1 Mbps with unidirectional channel directionality. It operates within a supply voltage range of 2.7 V to 5.5 V and offers an insulation voltage of 2500 Vrms. The integrated converter delivers a regulated 5 V output at 10 mA, dissipating up to 50 mW. Operating temperatures range from -40°C to +105°C.

Feature Summary

• Integrates a regulated DC-to-DC converter providing isolated power alongside signal channels
• Provides dual-channel magnetic coupling isolation for high-speed digital signals
• Features a narrow-body 8-lead SOIC package suitable for space-constrained designs

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation barriers
• Inverter drives and motor control circuits

Procurement Notes

Verify the specific suffix RL7 confirms tape-and-reel packaging when sourcing. Confirm the ARZ designation indicates lead-free and RoHS compliance. Check current availability status as distribution may vary by region. Ensure the 50 mW power dissipation rating aligns with thermal management requirements in the final assembly.

Selection Notes

Select this component when both signal isolation and isolated power generation are required in a single package. The 1 Mbps data rate suits standard industrial communication protocols. Consider the 2500 Vrms isolation rating for safety-critical applications. Evaluate the 50 mW output capability against the load requirements of the isolated side circuitry.

Part Context

This part belongs to the ADuM5240 family of digital isolators. The series combines analog isolation technology with integrated power conversion. It replaces discrete solutions that previously required separate isolators and isolated DC-DC converters. The family is designed to reduce board space and simplify design complexity in isolated interfaces.

Replacement Considerations

Direct substitutes include other ADuM5240 variants with different suffixes for packaging or temperature grades. Cross-family replacements may require evaluating pin compatibility and isolation voltage ratings. Verify that alternative components support the same 1 Mbps data rate and 50 mW power output.