MAX468中文资料两通道、三/四路、RGB视频开关及缓冲器数据手册ADI规格书

描述 Description

The MAX463–MAX470 series of two-channel, triple/quad buffered video switches and video buffers combines high-accuracy, unity-gain-stable amplifiers with high-performance video switches. Fast switching time and low differential gain and phase error make this series of switches and buffers ideal for all video applications. The devices are all specified for ±5V supply operation with inputs and outputs as high as ±2.5V when driving 150Ω loads (75Ω back-terminated cable).
Input capacitance is typically only 5pF, and channel-to-channel crosstalk is better than 60dB, accomplished by surrounding all inputs with AC ground pins. The on-board amplifiers feature a 200V/µs slew rate (300V/µs for AV = 2V/V amplifiers), and a bandwidth of 100MHz (90MHz for AV = 2V/V buffers). Channel selection is controlled by a single TTL-compatible input pin or by a microprocessor interface, and channel switch time is only 20ns.
For design flexibility, devices are offered with buffer-amplifier gains of 1V/V or 2V/V for 75Ω back-terminated applications. Output amplifiers have a guaranteed output swing of ±2V into 75Ω.

特性 Features

• 90MHz Bandwidth with 2V/V Gain
• Drives 50Ω and 75Ω Back-Terminated Cable Directly
• ±2V into 75Ω
• 300V/µs Slew Rate (2V/V gain)
• Logic Disable Mode:
• Reduced Power Consumption
• 5pF Input Capacitance (channel on or off)

应用 Application

• 广播级彩色信号多路复用
• RGB彩色视频重叠编辑器
• RGB医学成像
• RGB复用

简介

MAX468属于集成电路（IC）的模拟开关多路复用器解复用器。由ADI制造生产的MAX468模拟开关，多路复用器，解复用器该系列产品可用于在多个可用信号路径之间互连或路由模拟信号。功能类似于传统的机电开关，但与机电开关相比，它们的固态特性有利于电子控制、延长使用寿命及降低开关噪声，但作为代价，切换信号的幅度和偏压限制有所增加。