ADUM1240ARZ

Overview

The ADUM1240ARZ is a dual-channel digital isolator utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.25 V to 3.6 V, consuming 366 uA of power. The device provides 3750 Vrms isolation and supports data rates up to 2 Mb/s with a propagation delay of 180 ns. It features bidirectional channels in an 8-SOIC package, functioning reliably between -40°C and +125°C.

Feature Summary

• Integrates two independent signal paths using on-chip transformer technology for robust magnetic isolation.
• Provides high common-mode transient immunity to protect against noise in electrically noisy environments.
• Maintains low power consumption suitable for battery-operated or energy-efficient applications.

Applications

• Industrial process control systems requiring galvanic isolation
• Medical equipment signal interfaces
• General-purpose isolated communication links

Procurement Notes

Verify the specific suffix ARZ indicates the RoHS-compliant tube packaging variant. Confirm the manufacturer part number matches Analog Devices Inc. specifications exactly. Ensure the component meets the required thermal and electrical ratings for the intended operational environment before finalizing procurement.

Selection Notes

Select this component when bidirectional signal transmission is required across an isolation barrier. It is appropriate for applications needing moderate data speeds with low power constraints. Consider the SOIC-8 footprint and temperature range compatibility with the target PCB design.

Part Context

This part belongs to the ADuM124x series of micropower digital isolators. It shares the same core iCoupler architecture as related models like the ADUM1241, differing primarily in channel directionality and specific interface configurations within the family.

Replacement Considerations

The ADUM1241ARZ serves as a functional substitute, offering identical electrical performance but with unidirectional channel configuration instead of bidirectional.