Analog Devices Inc. ADuM1201 Dual-Channel Digital Isolators

Analog Devices ADuM1201 Dual-Channel Digital Isolators provide outstanding performance characteristics superior to optocouplers. These devices are based on proprietary iCoupler® technology that combines high-speed CMOS and monolithic transformer technologies. The iCoupler devices consume one-tenth to one-sixth the power requirement of optocouplers and eliminate the requirement LEDs, photodiodes, external drivers, and other discrete components. The ADuM1201 Digital Isolators offer 3V/5V level translation, low power operation, bidirectional communication, 3ns precise-timing characteristics, and high-temperature operation at 125°C.

The ADuM1201 isolators provide two independent isolation channels in a variety of channel configurations and data rates. The automotive grade versions that are qualified for 125°C operation per AEC-Q100 of ADuM1201 Series are also available. Typical applications include RS-232/RS-422/RS-485 transceiver isolation, size-critical multichannel isolation, SPI interface/data converter isolation, hybrid electric vehicles, battery monitor, and motor drives.


  • Based on proprietary iCoupler® technology
  • Low power operation
  • Bidirectional communication
  • 3V/5V level translation
  • 125°C high-temperature operation
  • DC to 25Mbps high data rate (NRZ) 
  • Greater than 25kV/μs high common-mode transient immunity
  • Precise timing characteristics:
    • 3ns maximum pulse width distortion
    • 3ns maximum channel-to-channel matching
  • AEC-Q100 qualified automotive versions available
  • UL recognition: 2500Vrms for 1 minute per UL 1577
  • RoHS-compliant narrow body SOIC 8-lead package


  • Size-critical multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceiver isolation
  • Digital field bus isolation
  • Hybrid electric vehicles, battery monitor, and motor drives

Functional Block Diagram with Pin Configuration

Block Diagram - Analog Devices Inc. ADuM1201 Dual-Channel Digital Isolators
Published: 2019-05-08 | Updated: 2022-03-10