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ADUM3160:  Full/Low Speed USB Digital Isolator

Product Details

Product Status:Recommended for New Designs

The ADuM3160 is a USB port isolator, based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, this isolation component provides outstanding performance characteristics and is easily integrated with low and full speed USB-compatible peripheral devices.

Many microcontrollers implement USB so that it presents only the D+ and D− lines to external pins. This is desirable in many cases because it minimizes external components and simplifies the design; however, this presents particular challenges when isolation is required. Because the USB lines must switch between actively driving D+/D− and allowing external resistors to set the state of the bus, the ADuM3160 provides mechanisms for detecting the direction of data flow and control over the state of the output buffers. Data direction is determined on a packet-by-packet basis.

The ADuM3160 uses the edge detection based iCoupler technology in conjunction with internal logic to implement a transparent, easily configured, upstream-facing port isolator. Isolating the upstream port provides several advantages in simplicity, power management, and robust operation.

The isolator has propagation delay comparable to that of a standard hub and cable. It operates with the supply voltage on either side ranging from 3.0 V to 5.5 V, allowing connection directly to VBUSx by internally regulating the voltage to the signaling level. The ADuM3160 provides isolated control of the pull-up resistor to allow the peripheral to control connection timing. The device draws low enough idle current that a suspend state is not required.

  • USB peripheral isolation
  • Isolated USB hub
  • Repeaters


  • USB 2.0 compatible
  • Enhanced system-level ESD performance per IEC 61000-4-x
  • 4.0 V to 5.5 V operation
    7 mA maximum upstream supply current at 1.5 Mbps
    8 mA maximum upstream supply current at 12 Mbps
    2.5 mA maximum upstream idle current
  • Bidirectional communication
  • Upstream short-circuit protection
  • High temperature operation: 105°C
  • Low and full speed data rate: 1.5 Mbps and 12 Mbps
  • High common-mode transient immunity: >25 kV/μs
  • Evaluation Board and User Guide available
  • 16-lead SOIC wide body package
  • Safety and regulatory approvals
    UL recognition: 2500 V rms for 1 minute per UL 1577
    CSA Component Acceptance Notice #5A
    IEC 60950-1: 400 V rms (reinforced)
  • VDE certificate of conformity
    DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    VIORM = 560 V peak

Functional Block Diagram

Of Note ...

  • An overview of the iCoupler family of products is available.
  • Need isolated power for your USB interface? Please consider the ADuM5000 1/2W isoPower isolated DC/DC converter in a small 16-lead SOIC.
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Title Content Type File Type
ADuM3160: Full/Low Speed 2.5 kV USB Digital Isolator Data Sheet (Rev C, 03/2014) (pdf, 210 kB) Data Sheets PDF
Solving Isolation Challenges in Power Conversion Applications
This webcast will present solutions to isolation challenges in power conversion applications. Among the topics to be discussed are the limitations of traditional methods of isolation (such as utilization of optocouplers and pulse transformers) vs. more efficient and cost effective solutions that utilize digital isolators. If you are currently using optocouplers and pulse transformers, this is a webcast you should attend.
Webcasts WEBCAST
UG-461: ezLINX iCoupler Isolated Interface Development Environment  (pdf, 1915 kB) User Guides PDF
UG-043: iCoupler ADuM4160/ADuM3160 USB Isolator Evaluation Board  (pdf, 543 kB) User Guides PDF
NAppkin Note: Breaking Ground Loops to Protect USB Data Transmission  (pdf, 33 kB) Technical Articles PDF
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary  (pdf, 291 kB)
By Flow Zhao, Design Engineer
Technical Articles PDF
NAppkin Note: Lowering the Power of the ADuM524x  (pdf, 223 kB)
By Mark Cantrell, Senior Applications Engineer
Technical Articles PDF
Digital Isolator Product Selection and Resource Guide  (pdf, 640 kB) Product Selection Guide PDF
Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013) Press Releases HTML
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADUM3160 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADUM3160BRWZ Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $3.61 $3.13 Y  Material Info PCN Purchase Sample
ADUM3160BRWZ-RL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $3.13 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ezLINX™ iCoupler® Isolated Interface Development Environment
Model Description Price RoHS View PCN/ PDN Check Inventory/
EZLINX-IIIDE-EBZ Status: Production iCoupler® Isolated Interface Development Environment Evaluation Board $149.00 Yes -
EVAL-ADUM4160: USB Isolator Board for the ADuM3160 and ADuM4160
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-ADUM4160EBZ Status: Production Evaluation Board $55.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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