Analog Devices Inc. ADuM4150 SPIsolator Digital Isolators

Analog Devices ADuM4150 SPIsolator™ Digital Isolators consists of 6-channel dedicated digital isolators optimized for isolated serial peripheral interfaces (SPIs) with 1/1 aux channel directionality. Developed using Analog Devices, Inc., iCoupler® chip-scale transformer technology, the low propagation delay in the CLK, MO/SI, MI/SO, and SS SPI bus signals support SPI clock rates of up to 17MHz. These channels operate with a 14ns propagation delay and 1ns jitter to optimize timing for SPI. The ADuM4150 isolators also include two additional independent low data rate isolation channels, one channel in each direction. Data in the slow channels are sampled and serialized for a 250kbps data rate with 2.5μs of jitter.


  • Supports up to 40MHz SPI clock speed in delay clock mode
  • Supports up to 17MHz SPI clock speed in 4-wire mode 4 high speed, low propagation delay, SPI signal isolation channels
  • 2 data channels at 250kbps
  • Delayed compensation clock line
  • 20-lead SOIC_IC with 8.3mm creepage
  • High-temperature operation: 125°C
  • High common-mode transient immunity: >25kV/µs
  • Safety and regulatory approvals
  • UL recognition per UL 1577
  • 5000Vrms for 1 minute SOIC long package
  • CSA Component Acceptance Notice 5A
  • VDE certificate of conformity (pending)
  • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
  • VIORM = 846V peak


  • Industrial programmable logic controllers (PLC)
  • Sensor isolation

Block Diagram

Block Diagram - Analog Devices Inc. ADuM4150 SPIsolator Digital Isolators
Veröffentlichungsdatum: 2015-01-30 | Aktualisiert: 2022-03-11