ADUM1241ARSZ

Overview

The ADUM1241ARSZ is a micropower, dual-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It features bidirectional signal transmission with two channels in an SSOP-28 package. Key electrical parameters include a data rate of 2 Mb/s, isolation voltage of 3750 Vrms, and common-mode transient immunity of 25 kV/µs. Operating supply voltage ranges from 2.25 V to 3.6 V, with a typical operating current of 306 µA. Propagation delay is 180 ns, and the device operates within a temperature range of -40°C to +125°C.

Feature Summary

• Incorporates iCoupler magnetic coupling technology for galvanic isolation without external transformers.
• Provides bidirectional data transmission across two independent channels.
• Features high common-mode transient immunity to maintain signal integrity in noisy environments.

Applications

• Galvanic isolation of digital signals in industrial communication systems
• Isolation barriers in sensor interfaces and measurement equipment
• Signal isolation in embedded control systems requiring low power consumption

Procurement Notes

Verify the specific suffix ARSZ confirms the SSOP-28 package variant when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure compatibility with required operating temperature ranges and supply voltage specifications before integration into design.

Selection Notes

Select this component for applications requiring bidirectional isolation with low power consumption. The SSOP-28 package offers higher channel density compared to SOIC-8 variants. Verify that the 2 Mb/s data rate meets system timing requirements and that the 3750 Vrms isolation rating satisfies safety standards for the intended application environment.

Part Context

This part belongs to the ADUM1241 series of dual-channel digital isolators. It shares functional similarities with other iCoupler devices but differs in package configuration and channel directionality options. The ARSZ designation specifically identifies the SSOP-28 surface-mount package variant within the broader product family.

Replacement Considerations

Direct substitutes include ADUM1241ARZ (SOIC-8 package) and ADUM1241ARSZ-RL7 (tape and reel packaging). Cross-reference pinouts and thermal characteristics when replacing to ensure mechanical fit and electrical performance remain consistent with original design specifications.