In a previous post, I discussed the trade-offs in linearity of several continuous-time sigma-delta schemes. In this post, I will describe a method that linearizes the sigma-delta noise-shaping filter (NSF). That is, the scheme presented in this article greatly suppresses the linearity requirements on the noise-shaping filter. This method applies to both discrete-time and continuous-time [...]
Tag Archives: continuous time sigma-delta
Example Simulink model & scripts for continuous-time sigma-delta ADC
I’ve put together a 2nd order continuous sigma-delta Simulink model as a starting point. This is the multi-port feedback configuration (feeds back into input of 1st and 2nd integrators).
Posted in Analog Professional Also tagged ADC, example, feedback, matlab, quantizer, sigma delta, simulink 19 Comments