Analog Devices Inc. ADuM4160 USB Digital Isolator

Analog Devices Inc. ADuM4160 USB Digital Isolator is a USB port isolator based on iCoupler® technology. ADI ADuM4160 combines high speed CMOS and monolithic air core transformer technology to provide outstanding performance characteristics. The device is easily integrated with low and full speed USB-compatible peripheral devices. ADuM4160 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. 

ADI ADuM4160 uses the edge detection based iCoupler technology in conjunction with internal logic to implement a transparent, easily configured, upstream facing port isolator. Isolating an upstream facing 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 3.1 V to 5.5 V, allowing connection directly to VBUS by internally regulating the voltage to the signaling level. ADuM4160 provides isolated control of the pull-up resistor to allow the peripheral to control connection timing.


  • Fully USB 2.0 compliant
  • 1.5Mbps and 12Mbps Low and full speed data rate
  • Bidirectional communication
  • Short-circuit protection for xD+ and xD- lines
  • 3.3V and 5V (dual mode power configuration) operation
  • Class 3A contact ESD performance per ANSI/ESD STM5.1-2007
  • 105°C High temperature operation
  • >25kV/μs High common-mode transient immunity


  • USB Peripheral Isolation
  • Isolated USB Hub
  • Medical Applications


Functional Block Diagram

Block Diagram - Analog Devices Inc. ADuM4160 USB Digital Isolator
Published: 2013-05-03 | Updated: 2022-03-11