Modeling of second order continuous-time sigma delta modulator in LabVIEW

This paper presents a modeling of second order continuous-time sigma delta modulator (CT-SDM) in LabVIEW. It utilizes powerful graphical programing environment offered by LabVIEW which results in an efficient and user friendly modeling of CT-SDM. It considers system non-idealities involved in CT-SDM thus providing accurate simulation. Design flexibility is provided through well-organized GUI. Simulation of CT-SDM is performed which achieve SNDR of 128.32 dB and ENOB 21.02 bits.