MAX4121数据手册ADI中文资料规格书

描述 Description

The MAX4111/MAX4121/MAX4221 wideband video switches are optimized for high-definition, broadcast-quality, composite (HDTV, NTSC, PAL, SECAM, and RGB) video switching arrays. Their open-loop buffer amplifiers offer 0.1dB gain flatness to 150MHz. They operate from ±5V supplies and feature differential phase and gain error of only 0.01°/0.01%, respectively. The ultra-low switching glitch (13mV) is positive to avoid confusion with any sync pulse.
Ideal as building blocks in large arrays, these devices feature a constant, high input impedance and a disable function that puts the outputs into a high-impedance state and reduces the operating current to only 250µA. The open-loop architecture allows the outputs to drive capacitive loads without oscillation. Other key features include -92dB crosstalk and -78dB isolation (MAX4121).
The MAX4111/MAX4121/MAX4221 are offered in narrow plastic DIP and SO packages. See the table below for key features:
Part Description Pins MAX4111 SPST, single-input, single-output switch 8 MAX4121 SPDT, 2-input, single-output switch 8 MAX4221 Dual, SPDT, 2-input, single-output switch 16

特性 Features

• -3dB Bandwidth of 330MHz
• 0.1dB Gain Flatness of 150MHz
• 700V/µs Slew Rate
• 0.01°/0.01% Differential Phase/Gain
• Low Power: 5.5mA Max
• -92dB Crosstalk and -78dB Off Isolation at 30MHz
• High-Z Outputs when Disabled
• 3pF Input Capacitance
• Ultra-Low Switching Glitch
• On-Board Control Logic

应用 Application

• 广播/HDTV级彩色信号多路复用
• 数据采集
• 图形彩色信号切换
• 射频与中频路由
• 电信路由
• 视频切换及交叉矩阵开关