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140MHz、2通道、视频多路复用放大器

产品详情

主要特征

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主要特征

  • 140MHz Unity-Gain Bandwidth
  • 250V/µs Slew Rate
  • 0.07%/0.09° Differential Gain/Phase Error
  • 36ns Channel Switch Time
  • No External Compensation Components
  • 8-Pin DIP and SO Packages
  • Directly Drives 50Ω and 75Ω Cables

应用/用途

  • 广播级视频信号多路复用
  • 同轴电缆线驱动器
  • 高速信号处理
  • 医学成像
  • 视频编辑
  • 视频安全系统

描述

The MAX442 combines a 140MHz video amplifier with a high-speed, 2-channel multiplexer in an 8-pin package. With its 36ns switching time and low differential gain (0.07%) and phase (0.09°) errors, it is ideal for broadcast-quality video applications. The device is designed to drive both 50Ω and 75Ω cables, and can directly drive a 75Ω load to ±3V.

The MAX442 video amplifier is compensated for unity-gain stability, and features a 140MHz bandwidth and a 250V/µs slew rate. The multiplexer's low input capacitance (4pF with the channel on or off) maximizes high-speed performance, and a ground pin separating the two input channels minimizes crosstalk and simplifies board layout.

The MAX442 operates from ±5V supplies and typically consumes 300mW. For applications that require more input channels, see the data sheets for the MAX440 8-channel mux/amp and the MAX441 4-channel mux/amp.

简化框图

MAX442:典型工作电路 MAX442:典型工作电路 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心