ADUM4166BRIZ

Overview

The ADUM4166BRIZ is a USB 2.0 digital isolator utilizing iCoupler technology, integrating isolation channels, USB transceivers, power management, and control logic into a single 20-SOIC package. It supports data rates up to 480 Mbps with 5700 Vrms isolation voltage and 40 kV/µs CMTI. The device operates on 3.0 V to 3.6 V or 3.0 V to 5.5 V supplies, features a downstream clock input, and functions within a -55°C to +125°C temperature range.

Feature Summary

• Integrates USB transceiver, timing circuits, and isolation channels in a single wide-body SOIC-IC package
• Supports automatic speed negotiation for Low-Speed, Full-Speed, and High-Speed USB 2.0 modes
• Provides jitter cleaning and eye-opening via high-speed data retiming capabilities
• Features ultra-low power standby modes compatible with USB 2.0 suspend states

Applications

• Isolating USB host ports from peripheral devices
• Medical equipment requiring defibrillation-proof connections
• Industrial systems needing robust EMI and surge immunity
• High-speed data transfer applications requiring signal integrity

Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance when sourcing. Confirm the package designation matches the 20-SOIC (0.295 inch width) requirement for your PCB layout. Ensure the downstream clock input configuration aligns with your system design, as this variant differs from upstream options. Validate that the operating voltage range meets your power supply specifications before integration.

Selection Notes

Select this component when a downstream clock input is required for the isolated USB link. It is suitable for designs prioritizing jitter reduction and high-speed data retiming. Consider the integrated power management if minimizing external components is a priority. Verify that the 5700 Vrms isolation rating satisfies your safety regulatory requirements.

Part Context

This part belongs to the ADuM416x series of USB 2.0 port isolators. It shares architectural similarities with the ADUM4165 but differs in clock input placement. The series simplifies system design by combining multiple functions into a compact footprint, addressing the need for reliable isolation in modern USB interfaces.

Replacement Considerations

The ADUM4165BRIZ is a functional alternative with an upstream clock input instead of downstream.