ADUM3166BRSZ

Overview

The ADUM3166BRSZ is a single-channel digital isolator utilizing iCoupler magnetic coupling technology, designed for USB 2.0 port isolation. It supports data rates of 1.5 Mbps, 12 Mbps, and 480 Mbps with a maximum propagation delay of 500 ns and typical rise/fall times of 75 ns/300 ns. The device offers 3750 Vrms isolation voltage and a common-mode transient immunity of 50 kV/µs. Operating on 3 V to 5.5 V supplies, it functions within an extended temperature range of -55°C to +125°C in a 20-SSOP package.

Feature Summary

• Supports all USB 2.0 data rates including low-speed, full-speed, and high-speed modes
• Provides bidirectional signal transmission for host and peripheral isolation
• Features re-driving and retiming capabilities to eliminate input jitter
• Delivers ultra-low power standby current during USB suspend or disconnect states

Applications

• USB peripheral isolation
• USB host isolation
• USB hub isolation

Procurement Notes

Verify the specific suffix BRSZ against the manufacturer datasheet to confirm the SSOP package type and reel quantity specifications. Ensure compatibility with the required operating voltage range and thermal management needs for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when bidirectional isolation is required for USB interfaces compared to unidirectional alternatives like the ADUM3165. Consider the higher standby current requirements relative to general-purpose isolators and ensure the design accommodates the flexible clock input options provided by the device architecture.

Part Context

This part belongs to the ADuM316x series of USB digital isolators from Analog Devices. It shares core architectural similarities with the ADUM3165 but differs in channel directionality, offering bidirectional capability suitable for complex host-peripheral communication topologies requiring robust signal integrity across the isolation barrier.

Replacement Considerations

The ADUM3165BRSZ serves as a functional substitute for applications requiring only unidirectional signal paths. Designers must verify that the circuit topology does not rely on the bidirectional nature inherent to the ADUM3166 when considering this replacement.