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Analog Devices Inc. AD7405 16 位隔离式 Σ-Δ 型调制器

亚德诺半导体 AD7405 16 位隔离式 Σ-Δ 型调制器是一款高性能二阶 Σ-Δ 型调制器，片上的数字隔离采用 iCoupler® 技术。AD7405 调制器能将模拟输入信号转换为高速单比特 LVDS 数据流。采用 4.5V 到 5.5V 的工作电压（VDD1）电源供电，AD7405 可接收 ±250mV 的差分信号（满量程±320mV）。亚德诺半导体 AD7405 16 位隔离式 Σ-Δ 型调制器适合在要求电流隔离的高电压应用中监控分流电压。AD7405 采用 16 引脚宽体 SOIC 封装，工作温度范围为 −40°C 至 +125°C，特别适合分路电流监控、交流电机控制、功率和太阳能逆变器、风轮机逆变器、数据采集系统、模数及 & 光隔离器的替代方案。

The Analog Devices AD7405 AD7405 16-bit, isolated sigma-delta modulators are ideal for shunt voltage monitoring in high voltage applications requiring galvanic isolation. Available in a 16-lead, wide-body SOIC package with an operating temperature range of −40°C to +125°C, AD7405 modulators are particularly well-suited for shunt current monitoring, AC motor controls, power and solar inverters, wind turbine inverters, data acquisition systems, and analog-to-digital & opto-isolator replacements.

特性

  • 5MHz to 20 MHz external clock input rate
  • 16 bits, no missing codes
  • 88dB Signal-to-noise ratio (SNR) typical
  • 14.2 Effective number of bits (ENOB)
  • 1.6μV/°C typical offset drift vs. temperature
  • Low voltage differential signaling (LVDS) interface
  • On-board digital isolator
  • On-board reference
  • ±320mVf ull-scale analog input voltage range
  • −40°C to + 125°C operating temperature range
  • >25kV/μs high common-mode transient immunity
  • 16-lead, wide-body SOIC_IC, with increased creepage package
  • Safety and regulatory approvals
    • UL recognition
      • 5000Vrms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A
    • VDE Certificate of Conformity
      • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
      • 1250VPEAK maximum working insulation voltage (VIORM)

应用

  • Shunt current monitoring
  • AC motor controls
  • Power and solar inverters
  • Wind turbine inverters
  • Data acquisition systems
  • Analog-to-digital and opto-isolator replacements

Functional Block Diagram

Analog Devices Inc. AD7405 16 位隔离式 Σ-Δ 型调制器
发布日期: 2015-05-04 | 更新日期: 2022-03-11