My objective is to understand the difference between first and higher order Multi-bit sigma delta modulators in terms of DAC feedback signals.
I was viewing the feedback DAC waveforms (after the DAC) between first and higher order modulators.
I wanted to verify if this is something expected out of a higher order modulator and would this level switching would increase as modulator's order increases?
And this oscillation between more levels is responsible for high resolution? (in higher order Multi-bit sigma delta modulators)