描述 Description

The MAX4141 is a wideband 330MHz, 700V/μs 4x1 multiplexer optimized for high-definition, broadcast-quality, composite (HDTV, NTSC, PAL, SECAM) video switching arrays. The device includes four open-loop buffer amplifiers with a 0.1dB gain flatness of 150MHz, and enable and switch-control logic. The MAX4141 operates from ±5V supplies and features differential phase and gain error of only 0.01°/0.01%. The ultra-low switching glitch (less than 13mV) is positive to avoid confusion with any sync pulses.
Ideal as a building block for large switch arrays, the MAX4141 features a constant, high input impedance and a disable function that puts the output into a high-impedance state and reduces the operating current to only 250μA. The open-loop architecture allows the output to drive capacitive loads without oscillation.
Other key features include -66dB crosstalk (30MHz), -74dB isolation (30MHz), less than 10mV offset voltage, and a 110MHz full-power bandwidth (1.4Vp-p). The MAX4141 is available in a 14-pin narrow SO package.

特性 Features

? 330MHz -3dB Bandwidth
? 0.1dB Gain Flatness of 150MHz
? 700V/μs Slew Rate
? 0.01°/0.01% Differential Phase/Gain
? -66dB Crosstalk and -74dB Isolation at 30MHz
? High-Z Outputs when Disabled
? 3pF Input Capacitance
? Low Switching Glitch
? On-Board Control Logic

應用 Application

? 廣播/HDTV級彩色信號多路復用
? 數(shù)據(jù)采集
? 圖形彩色信號切換
? 射頻與中頻路由
? 電信路由
? 視頻由路與交叉點矩陣