ADUM3166

RECOMMENDED FOR NEW DESIGNS

3.75 kV RMS Digital Isolators for Isolated USB 2.0 High, Full, and Low Speed

Data Sheet (Rev. B) Product Selection Table

Part Models: 2
1ku List Price: Starting From $4.50

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Overview

USB 2.0 signaling with automatic detection of low, full, and high speed connections
- 1.5 Mbps, 12 Mbps, and 480 Mbps data rates
Bidirectional USB isolator for upstream and downstream ports
- Redriving and high speed data retiming for input jitter removal and an open eye
- Flexible clock input options
4.5 V to 5.5 V V_BUSx or 3 V to 3.6V operation on each side
- 21 mA typical idle, low or full speed mode supply current
- 48 mA typical idle, high speed mode supply current
Ultra low power standby in USB 2.0 suspend (L2) or disconnect
- 1.7 mA typical low power standby, upstream supply current
- 20 μA typical low power standby, downstream supply current

±6000 V IEC 61000-4-2 ESD protection across the isolation barrier
Passed CISPR32/EN55032 Class B emissions
High common-mode transient immunity: 50 kV/μs typical
Safety and regulatory approvals
- UL 1577
- IEC/EN/CSA 62368-1
- IEC/CSA 60601-1
- IEC/CSA 61010-1
- CQC GB 4943.1
- DIN EN IEC 60747-17 (VDE 0884-17)
Operating temperature range: −55°C to +125°C
Compact 20-lead SSOP with 5.3 mm creepage and clearance

The ADuM3165/ADuM3166 are USB 2.0 port isolators, utilizing Analog Devices, Inc., iCoupler^® technology to dynamically support all USB 2.0 data rates: low (1.5 Mbps), full (12 Mbps), or high (480 Mbps), as required. The devices support host isolation with automatic speed negotiation as well as peripheral isolation.

High speed data is retimed for jitter reduction, requiring an external clock signal or crystal input. The ADuM3165 supports the clock or crystal input on the upstream side, and the ADuM3166 supports the clock or crystal input on the downstream side, offering two options to best suit the system design.

The low power standby mode for downstream (Side 2) supports applications with limited available power, such as battery-operated peripherals. The upstream (Side 1) standby current meets USB 2.0 requirements for suspended operation.

The isolators are specified over an extended industrial temperature range of −55°C to +125°C and are available in a compact 20-lead shrink small outline package (SSOP) with 5.3 mm creepage and clearance.

Applications

USB peripheral, USB host, and USB hub isolation
Electronic test and measurement equipment
Medical devices and integrated PCs
Industrial PCs and isolated USB ports for debug or upgrade
USB isolator modules and USB cable isolators

Part Models: 2
1ku List Price: Starting From $4.50

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADUM3166BRSZ	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM3166BRSZ-RL	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

IBIS Model 1

ADuM3166 - IBIS Model

Evaluation Kits

Evaluating the ADuM3165/ADuM3166 3.75 kV RMS Digital Isolators for Isolated USB 2.0 High, Full, and Low Speed

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Features and Benefits

Supports USB 2.0 data transfer
- Low speed (1.5 Mbps)
- Full speed (12 Mbps)
- High speed (480 Mbps)
USB Type C (upstream) and USB Type A (downstream) connectors
Upstream 5 V power from cable or external supply
Downstream power from external supply
Accepts 3.3 V or 5 V external supplies
PGOOD (power good) indicator on downstream side
Option to connect test points
20-lead SSOP package option with 5.3 mm creepage

Product Details

The EVAL-ADuM3165EBZ and the EVAL-ADuM3166EBZ allow quick and easy evaluation of the ADuM3165 and ADuM3166 USB isolators, allowing direct connection to USB hosts and peripherals without the need for additional components. The ADuM3165/ADuM3166 employ Analog Devices, Inc., iCoupler^® technology to combine isolator channels, USB transceivers, power and timing circuits, control logic and internal terminations, pull-ups, and pull-downs into a single, 20-lead, compact shrink small outline package (SSOP).

The evaluation boards have a separate ground and power plane for each side of the isolator. This separation enables the evaluation of the ADuM3165/ADuM3166 with galvanic isolation between both sides of these devices. However, the boards have not been certified for safety when using high voltages, and testing must be carried out by qualified personnel only.

Power can be provided on the upstream side from a connected USB host, while an external power supply is required for the downstream side.

For full details on the ADuM3165/ADuM3166, see the ADuM3165/ADuM3166 data sheet, which must be consulted in conjunction with the user guide when using the EVAL-ADuM3165EBZ or the EVAL-ADuM3166EBZ.

Resources

UG-2038: Evaluating the ADuM3165/ADuM3166 3.75 kV RMS Digital Isolators for Isolated USB 2.0 High, Full, and Low Speed (Rev.0)
5/9/2022

Reference Designs

Galvanic Isolation of USB High Speed Type-C Connector

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Features and Benefits

USB 2 High Speed Isolated Retimer
Type-C Connectivity
Small Form Factor
High Efficiency 2.5W Isolated Power
Automatic Power Path Selectors with Integrated Protections for Optional External Power