返回Analog Devices Inc.

Analog Devices Inc. ADuM3151 SPIsolator 数字隔离器

亚德诺半导体 ADuM3151 SPIsolator ™数字隔离器由若干 7 通道专用 3.75kVrms 数字隔离器组成，并针对具有 2/1 辅助通道方向的隔离式串行外设接口（SPI）进行了优化。ADuM3151 采用亚德诺半导体公司的 iCoupler® 芯片级变压器技术开发而成，在 CLK, MO/SI, MI/SO, 和 SS SPI 总线信号中具有低传播延迟的特性，可支持最高达 17MHz 的 SPI 时钟速率。这些通道在工作时具有 14ns 传播延迟和 1ns 抖动，优化了 SPI 的时序。ADuM3151 隔离器还额外提供了两个独立的低数据速率隔离通道，每个方向一个通道。对慢速通道中的数据采样和串行化数据速率为 250 kbps ，并伴有 2.5μs 的抖动。

特性

  • Support up to 17MHz SPI clock speed 4 high speed, low propagation delay, and SPI signal isolation channels
  • Three 250kbps data channels 20-lead SSOP package with 5.1 mm creepage
  • High-temperature operation at 125°C
  • High common-mode transient immunity: >25kV/μs
  • Safety and regulatory approvals:
    • UL recognition per UL 1577 (pending)
      • 3750Vrms for 1 minute
    • CSA Component Acceptance Notice 5A (pending)
    • VDE certificate of conformity (pending)
      • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
      • VIORM = 560V peak

应用

  • Industrial programmable logic controllers (PLCs)
  • Sensor isolation

Functional Block Diagram

框图 - Analog Devices Inc. ADuM3151 SPIsolator 数字隔离器

Additional Resources

Design a complete, fully isolated, and highly flexible, 4-channel analog input system for PLCs

Suitable for programmable logic controllers (PLCs) and distributed control system (DCS) applications in the harshest industrial environments this circuit from the lab delivers multiple voltage inputs with open wire detection and HART-compatible, 4mA to 20mA current inputs and all channels protected from transient overvoltage or overcurrent events.

Learn More

View Results ( 4 ) Page
物料编号 数据表 描述 传播延迟时间 封装
ADUM3151ARSZ ADUM3151ARSZ 数据表 数字隔离器 7 Ch.,Isolator for SPI Interface 25 ns Tube
ADUM3151ARSZ-RL7 ADUM3151ARSZ-RL7 数据表 数字隔离器 7 Ch.,Isolator for SPI Interface 25 ns Reel
ADUM3151BRSZ ADUM3151BRSZ 数据表 数字隔离器 7 Ch.,Isolator for SPI Interface 14 ns Tube
ADUM3151BRSZ-RL7 ADUM3151BRSZ-RL7 数据表 数字隔离器 7 Ch.,Isolator for SPI Interface 14 ns Reel
发布日期: 2015-01-29 | 更新日期: 2025-03-10