ADUM5241ARZ

Overview

The ADUM5241ARZ is a dual-channel digital isolator featuring an integrated isoPower DC/DC converter. It provides magnetic coupling isolation with a rated insulation voltage of 2500 Vrms and a common-mode transient immunity of 25 kV/µs. The device supports data rates up to 1 Mb/s using non-return-to-zero (NRZ) signaling. It operates within a supply voltage range of 2.7 V to 5.5 V, with a typical quiescent current of 2.7 mA. The integrated converter delivers a regulated 5 V output at 10 mA, dissipating 50 mW. Propagation delay is typically 70 ns. It is housed in a narrow-body 8-lead SOIC package and functions across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates a regulated DC/DC converter providing isolated power without external magnetics
• Utilizes capacitive-free magnetic coupling technology for signal transmission
• Supports unidirectional channel directionality for flexible system design

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Inverters and motor control circuits

Procurement Notes

Verify the specific suffix 'ARZ' to confirm the RoHS-compliant lead-free tape-and-reel or tube packaging variant as indicated by distributor listings. Ensure the order matches the exact Analog Devices part number to avoid confusion with similar series components. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Validate that the application environment remains within the specified -40°C to +105°C operating temperature range for reliable performance.

Selection Notes

Select this component when a compact solution combining signal isolation and isolated power generation is required. It is suitable for designs where space constraints prohibit external isolated DC/DC converters. Consider the 1 Mbps data rate limit and 2500 Vrms isolation rating against system requirements. Evaluate the 50 mW power dissipation capability of the internal converter to ensure it meets the load demands of the secondary side circuitry.

Part Context

This device belongs to the ADuM524x family of dual-channel isolators from Analog Devices. It shares architectural similarities with other members of the series but differs in specific power output configurations and channel directionality options. The family utilizes silicon dioxide-based magnetic coupling technology, distinguishing it from optocoupler alternatives. It serves as a general-purpose interface IC for high-reliability applications.

Replacement Considerations

Cross-reference with other ADuM524x variants such as ADUM5240 or ADUM5242 if different channel directionality or power output specifications are needed. Verify pin compatibility and electrical parameters before substitution. Consult official Analog Devices documentation for detailed comparison matrices.