ADUM4166BRIZ-RL

Overview

The ADUM4166BRIZ-RL is a digital isolator from Analog Devices Inc., designed for USB 2.0 peripheral isolation applications. It features four channels with bidirectional data transmission capabilities, supporting data rates up to 480 Mbps. The device utilizes capacitive coupling technology to provide galvanic isolation with an insulation voltage of 5700 Vrms. It operates within a supply voltage range of 3.0 V to 3.6 V and functions reliably across an extended temperature range from -55°C to +125°C. Packaged in a wide-body SOIC-20 format, it integrates necessary control logic and termination circuits.

Feature Summary

• Integrates USB 2.0 peripheral isolation with automatic speed negotiation for low, full, and high-speed modes
• Employs iCoupler capacitive coupling technology for robust galvanic isolation
• Features re-driving and retiming capabilities to eliminate input jitter and ensure eye diagram opening
• Supports flexible clock input options on the downstream side for system design optimization

Applications

• USB 2.0 peripheral port isolation
• Host-to-peripheral communication barriers
• Industrial automation systems requiring isolated USB interfaces
• Medical equipment with strict isolation safety requirements

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any updates to electrical characteristics or mechanical dimensions. Ensure storage conditions comply with moisture sensitivity level requirements before soldering. Validate part marking against official Analog Devices specifications.

Selection Notes

Select this component when designing isolated USB 2.0 peripheral interfaces requiring high-speed data integrity. Consider the integrated power and timing circuits which reduce external component count. Evaluate the 5700 Vrms isolation rating against system safety standards. Assess the SOIC-20 wide-body package for adequate creepage and clearance distances in high-voltage environments.

Part Context

This part belongs to the ADuM416x family of USB 2.0 port isolators. It complements the ADuM4165 by providing downstream-side clock support instead of upstream. Both devices share similar integration levels but differ in clock input placement to accommodate host or peripheral configurations within isolated USB topologies.

Replacement Considerations

The ADUM4165BRIZ-RL serves as a functional alternative for host-side isolation designs where upstream clock input is required instead of downstream support. Verify pin compatibility and clock input location differences before substitution.