Posted on May 17, 2011 at 13:22thanks obtronix, great link, very nice short form guide i will think it over... one solid gnd layer might be a good idea, especially on a STM32 system, because Vdda and Vssa are no truly dedicated analog pins (feeding ...
Posted on May 17, 2011 at 13:22Hi guys, thanks for your comments, jj.sprague - yes i did the improvements without changing supplies. obtronix - i think -when done right- your grounding system is a star - in fact with only two beams. But your connect...
Posted on May 17, 2011 at 13:22thanks jj.sprague for replying. i think your suggestion goes the right way. after HF-shortening ADins via 100nF and an additional thick AGND wire the jitter seems to lower to a few bits. Additional SW-Averaging gets me...
Posted on May 17, 2011 at 13:22Hi to all, after deciding for STM32 cause of bitbanding nested INTs and last but not least 12Bit ADC I'm now evaluating the ADC with results not too good. The AD values jittering by ca. +-40Bit even with shortend Adin....
