Hi Everyone, found the project from the Amp Hour. I’m doing my PhD in Analog/Mixed Signal design focusing on ADCs and Analog Front Ends. Just poking around for now, but I’m very interested in helping contributing to the Analog side of things when I learn more about what is needed. Happy to listen to any suggestions for how I could help in the mean time. Apologies if this isn’t the best way to introduce.

Welcome @anthonywall. Did you find the analog-design channel? There has also been some discussion of parametric analog cell generators in the paracells channels. I am collecting papers on DACs and ADCs around 130nm to put links into the “Inspirations Document”.

Hi @Adrian Freed, I’ve just found the analog-design along with some other interesting side channels. I’ll do some reading through them now to figure out what stage things are at and how I could fit in. Have you come across Boris Murmann’s ADC survey? You can filter by process node, and compare performance metrics. Link: https://web.stanford.edu/~murmann/adcsurvey.html

Thanks @anthonywall. I am digging for ones which use digital processes, i.e. digital standard cells.

@anthonywall @Adrian Freed We use this topology in FASoC : http://blaauw.engin.umich.edu/wp-content/uploads/sites/342/2017/11/ShimEdge-pursuit-comparator.pdf it is implemented in gf12lp maybe sky130 in the future

Yeah. That’s great work. It’s a clear example of a trend Jan Rabaey points to where you make the power consumed a function of the immediate necessary consumption - in the current-starved ring oscillator. I wonder how at 130nm a current switched dac would compare to a CDAC?

@Adrian Freed I’ll use the survey and my own references and share some published architectures on 0.1(x)um processes with you if that might be helpful. While there aren’t well-developed analog models yet, taking a precision-analog-less approach is wise alright. I read about a fully synthesized ADC recently, I’ll dig up that reference too.