Related to your query, I suggest : https://www.nutaq.com/blog/step-step-adcdac-tutorial-series-part-5

http://embedded-electronics.blogspot.com/2013/04/analog-to-digital-and-digital-to-analog.html

https://www.mathworks.com/help/msblks/ug/subranging-adc.html

see attached pictures to get a clue, TP means low-pass filter

You can consult the matlab code in the appendix section of this manuscript for the transmitter part:

https://www.theses.fr/2016LIL10178/document

thank you Fikre Gebreyohannes Peter Schulz Muhammad Ali Abdelhalim abdelnaby Zekry

https://www.theses.fr/2016LIL10178/document Fikre Gebreyohannes this is very good!

The following links will be useful:

https://www.mathworks.com/help/physmod/sps/adc-dac.html

https://www.mathworks.com/help/msblks/ug/successive-approximation-adc.html

In MATLAB data is in discrete form, to realize the process of sampling and interpolation (i.e. ADC and DAC respectively), one can make use of downsampling and upsampling process.

Initially generate the signal at higher rate, which may resemble to continuous time signal. Downsample/decimate to the required rate for processing, which is sampling process.

Similarly when DAC is to be done, upsample/interpolate to higher rate required from the existing rate.

Here is a sample code written in Matlab. Hope it can help.

https://poweidsplearningpath.blogspot.com/2020/04/ch4-adcdac-how-to-simulate-adcdac.html