Hi,

I would like to know how one goes about designing a continuous-time delta-sigma modulator. Most information on this topic is focussed on discrete-time modulators, and the MATLAB utilities available do the same. They also suggest mapping a discrete-time modulator to a continuous-time one with the use of preflitering.

However, I could not find a specs to filter design strategy. Perhaps someone can suggest a reference.

I would also like to know if there are any advantages/disadvantages of specific filter schemes (Ladder/Biquad Cascade/...) in the context of delta-sigma converter design. The tradeoffs in terms of normal filter design are clear to me.

Thanks
Vivek

Hi Rob,

I will try to get my hands on that workbook, although I think it will be a bit hard.

By the way, what a coincidence that Kathleen Philips works for Philips Semiconductors...

Regards
Vivek