ADUM3400ARWZ

Overview

The ADUM3400ARWZ is a quad-channel digital isolator utilizing Analog Devices iCoupler technology, which integrates high-speed CMOS circuitry with single-chip air-core transformer isolation. This device provides bidirectional signal transmission across four independent channels within a 16-pin SOIC package. It operates on a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 1 Mb/s. Key electrical specifications include an insulation voltage of 2500 Vrms, a common-mode transient immunity (CMTI) of 25 kV/µs, and typical propagation delays of 100 ns. The component functions reliably within an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrates high-speed CMOS logic with magnetic coupling technology for robust signal isolation
• Features Schmitt trigger inputs to enhance noise immunity and signal integrity
• Provides bidirectional data transmission capability across all four isolated channels
• Offers high common-mode transient immunity to ensure accurate digital signal transfer

Applications

• Isolating CMOS digital I/O interfaces in noisy environments
• Protecting sensitive local ground circuits from data bus noise and surges
• General-purpose digital isolation in industrial control systems
• Signal isolation in measurement and instrumentation equipment

Procurement Notes

Verify the specific suffix ARWZ-RL against official Analog Devices documentation to confirm the reel packaging configuration and tape-and-reel quantity. Ensure the order matches the exact part number variant required for your assembly process. Cross-reference the manufacturer's latest datasheet revision history to validate current manufacturing status and any potential design changes before finalizing procurement orders.

Selection Notes

Select this component when bidirectional isolation is required for four independent signals. The 1 Mb/s data rate suits moderate-speed applications, while the 2500 Vrms insulation rating ensures safety compliance. Consider the 16-SOIC package dimensions for PCB layout constraints. Verify that the 2.7 V to 5.5 V supply range aligns with the system power architecture and that the 100 ns propagation delay meets timing requirements.

Part Context

The ADUM3400 belongs to the ADuM3400 series of quad-channel digital isolators from Analog Devices. These devices leverage proprietary iCoupler technology to replace traditional optocouplers, offering superior performance in terms of speed, power consumption, and reliability. The series includes variants such as the ADUM3401 and ADUM3402, which differ primarily in channel directionality configurations while sharing similar core isolation technologies and package options.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support or authorized distributors for verified cross-reference information regarding equivalent components.