ADUM1400ARW

Overview

The ADUM1400ARW is a quad-channel digital isolator utilizing iCoupler technology, which integrates high-speed CMOS logic with monolithic air-core transformer coils. This architecture provides electrical isolation without the limitations of optical components. The device supports data rates up to 1Mbps and offers a basic isolation voltage of 2500Vrms. It features a minimum common-mode transient immunity of 25kV/µs and operates within a supply voltage range of 2.7V to 5.5V. The component is housed in a 16-lead SOIC package.

Feature Summary

• Eliminates design difficulties associated with LEDs and photodiodes found in traditional optocouplers
• Provides stable performance characteristics independent of temperature and aging effects
• Integrates signal path drivers to remove the need for external discrete components

Applications

• General-purpose digital isolation between circuits
• Industrial communication interfaces requiring safety barriers
• Data acquisition systems needing channel isolation

Procurement Notes

Verify current manufacturing status as sources indicate this specific part number may be obsolete or discontinued. Confirm availability of active replacement variants such as the ADUM1400WSRWZ if production continuity is required. Ensure the selected substitute matches the original pinout and electrical specifications to maintain system compatibility.

Selection Notes

Select this component for applications requiring robust isolation where magnetic coupling offers advantages over optical alternatives. Consider the iCoupler technology benefits regarding power consumption and signal integrity. Evaluate the 16-SOIC package constraints against board space requirements. Verify that the 2500Vrms isolation rating meets the specific safety standards of the target application environment.

Part Context

This device belongs to the ADuM1400 series of quad-channel digital isolators from Analog Devices. The series leverages proprietary iCoupler technology to deliver high-performance isolation solutions. These components are designed to replace traditional optocouplers in various industrial and commercial applications, offering improved reliability and reduced component count.

Replacement Considerations

Public confirmed substitutes include ADUM1400WSRWZ.