ADUM6401ARIZ-RL

Overview

The ADUM6401ARIZ-RL is a quad-channel digital isolator from Analog Devices, featuring an integrated isoPower isolated DC-to-DC converter. It utilizes iCoupler magnetic coupling technology to provide signal isolation across four channels with a data rate of 25 Mbps. The device offers 5000 Vrms isolation voltage and supports unidirectional signal transmission. It operates within a supply voltage range of 3 V to 5.5 V and functions reliably in temperatures from -40°C to +105°C. Packaged in a 16-SOIC wide body format with enhanced creepage distance, it delivers up to 400 mW of regulated isolated power.

Feature Summary

• Integrates an isolated DC-to-DC converter providing up to 400 mW of regulated power output at 5.0 V or 3.3 V
• Employs iCoupler magnetic coupling technology for high common-mode transient immunity exceeding 25 kV/µs
• Features Schmitt-triggered inputs for noise rejection and reliable signal integrity
• Provides 8 mm creepage distance in the RI-16 package for enhanced safety compliance

Applications

• RS-232, RS-422, and RS-485 transceiver interfaces
• Medical equipment requiring galvanic isolation
• AC/DC power supply start-up bias and gate drive circuits
• Isolated sensor interface systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix denotes the reel packaging variant. Ensure compatibility with moisture sensitivity level requirements during storage and handling. Cross-reference regulatory approvals such as UL 1577 and IEC standards against current datasheet revisions to guarantee compliance with target application safety regulations.

Selection Notes

Select this component when a single-chip solution combining signal isolation and isolated power generation is required. It eliminates the need for external isolated converters in low-power designs. Consider the 16-SOIC footprint and thermal dissipation characteristics. Evaluate the 25 Mbps data rate against system timing requirements. Verify that the integrated power output meets the load demands of the isolated side circuitry.

Part Context

This part belongs to the ADuM640x series of quad-channel digital isolators with integrated DC-to-DC converters. The series leverages Analog Devices' proprietary iCoupler technology. Variants within the family differ primarily by package type, such as standard SOIC versus enhanced creepage versions, and packaging formats like tube or reel. The ADUM6401ARIZ-RL specifically designates the enhanced creepage package in reel form.

Replacement Considerations

Direct substitutes include other members of the ADuM640x family, such as the ADUM6401ARWZ or ADUM6401ARIZ, depending on required packaging. Verify pinout compatibility and electrical specifications before substitution. Alternative packages may offer different thermal or creepage characteristics but maintain functional equivalence.