Overview

Features and Benefits

  • Supports up to 17 MHz SPI clock speed
  • 4 high speed, low propagation delay, SPI signal isolation channels
  • Supports up to 4 slave devices
  • 20-lead SSOP package with 5.1 mm creepage
  • High temperature operation: 125°C
  • High common-mode transient immunity: >25 kV/μs
  • Safety and regulatory approvals
    • UL recognition per UL 1577
      • 3750 V rms for 1 minute
    • CSA Component Acceptance Notice 5A
    • VDE certificate of conformity
      • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
      • VIORM = 565 V peak

Product Details

The ADuM3154 is an SPIsolator digital isolator optimized for a serial peripheral interface (SPI) that includes support for up to four slave devices. Based on the Analog Devices, Inc., iCoupler® chip scale transformer technology, the low propagation delay and jitter in the CLK, MO/SI, MI/SO, and SS SPI bus signals support SPI clock rates of up to 17 MHz.

The ADuM3154 isolator also provides a slave select multiplexing system that allows up to four slave devices to be serviced from one isolator. When a target slave is selected, the slave select signal propagates to the desired output with low propagation delay, allowing tight timing control. The isolated SSx is addressed through a 250 kbps low speed, 2-channel address bus, allowing the target slave device to be changed in as little as 2.5 μs.

Applications

  • Industrial programmable logic controllers (PLCs)
  • Sensor isolation

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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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.

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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.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.