ADUM3154

PRODUCTION

3.75 kV, 7-Channel, SPIsolator Multiple Slave, Digital Isolator for SPI

Data Sheet (Rev. C) Product Selection Table
Part Models
4
1ku List Price
Starting From $2.54
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Part Details

  • Supports up to 17 MHz SPI clock speed
  • 4 high speed, low propagation delay, SPI signal isolation channels
  • Supports up to 4 subordinate 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 1577
      • VISO = 3750 V rms for 1 minute 
    • IEC/EN/CSA 62368-1
    • DIN EN IEC 60747-17 (VDE 0884-17)
      • VIORM = 565 V peak
ADUM3154

3.75 kV, 7-Channel, SPIsolator Multiple Slave, Digital Isolator for SPI

ADuM3154 Functional Block Diagram ADum3154 Pin Diagram
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Documentation

Data Sheet 1

User Guide 1

Technical Articles 2

Safety and Regulatory Compliance 1

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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
EVAL-ADUM3154

ADUM3154/ADUM4154 Evaluation Board

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Features and Benefits

  • Access to all four data channels
  • Access to the slave select address lines
  • Access to the DCLK delayed clock
  • Multiple connection options
  • Support for Tektronix active probes
  • Provision for cable terminations
  • Support for PCB edge-mounted coaxial connectors
  • Easy configuration
  • Installed SPIsolator® digital isolator: ADuM3154BRSZ in the 20-lead SSOP package

Product Details

The EVAL-ADuM3154Z supports the ADuM3154ARSZ, ADuM3154BRSZ, ADuM4154ARIZ and ADuM4154BRIZ, which are, 4-channel SPIsolator isolators optimized for use in SPI applications. They include two low speed address pins to rout the slave select to one of four destinations. The evaluation board provides a JEDEC standard 20-lead SSOP pad layout, support for signal distribution, loopback, and loads referenced to VDDx or GNDx, as well as optimal bypass capacitance. Signal sources can be wired onto the board as well as brought onto the board through edge-mounted SMA connectors (sold separately) or terminal blocks for power connections. The board includes 200 mil header positions for compatibility with Tektronix active probes.

The board follows best printed circuit board (PCB) design practices for 4-layer boards, including a full power and ground plane on each side of the isolation barrier. No other EMI or noise mitigation design features are included on this board. In cases of very high speed operation or when ultralow emissions are required, refer to the AN-1109 application note for additional board layout techniques.

Supported SPIsolator Models
  • ADuM3154ARSZ
  • ADuM3154BRSZ
  • ADuM4154ARIZ
  • ADuM4154BRIZ
EVAL-ADUM3154
ADUM3154/ADUM4154 Evaluation Board

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