ACML-7420-000E

Overview

The Broadcom ACML-7420-000E is a quad-channel, high-speed CMOS digital isolator utilizing magnetic coupling technology through a thick insulation barrier. It supports data rates up to 100 MBd with an insulation voltage of 5600 Vrms and common-mode transient immunity of 25 kV/µs. Operating on supply voltages between 3 V and 5.5 V, the device features a maximum propagation delay of 27 ns and operates within a specified temperature range.

Feature Summary

• Employs magnetic coupling for signal transmission across a thick insulation barrier
• Provides four independent unidirectional channels for digital isolation
• Ensures high common-mode transient immunity for noise rejection
• Compatible with standard 3.3 V and 5 V logic families

Applications

• Isolating data conversion devices
• Protecting parallel buses in industrial systems
• Peripheral interface isolation in embedded controllers

Procurement Notes

Verify the specific suffix against official Broadcom documentation to confirm pinout and electrical characteristics. Ensure the component matches the required SOIC-16 package dimensions. Cross-reference the manufacturer part number with authorized distributor listings to confirm authenticity and avoid counterfeit components during acquisition.

Selection Notes

Select this component when high-speed data transfer is required alongside robust galvanic isolation. The 100 MBd rate suits applications needing rapid signal integrity. Consider the 5600 Vrms rating for safety-critical environments. Evaluate power consumption constraints as the device draws current proportional to data rate and supply voltage.

Part Context

This model belongs to the ACML series of multi-channel digital isolators from Broadcom. These devices are designed to replace traditional optocouplers in modern electronic designs, offering superior speed and reliability. The series integrates CMOS technology with magnetic coupling to provide compact, efficient isolation solutions for various industrial and communication interfaces.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify that any replacement maintains the same channel count, insulation voltage, and package type. Ensure the substitute device meets the required data rate and propagation delay specifications for the target application.