应用功能:High Speed, VideoDifference Amplifier The AD830 is a wideband, differencing amplifier designed foruse at video frequencies but also useful in many other applications.It accurately amplifies a fully differential signal at theinput and produces an output voltage referred to a user-chosenlevel. The undesired common-mode signal is rejected, even at high frequencies. Highimpedanceinputseaseinterfacing to finitesource impedances and thus preserve the excellentcommon-mode rejection.