this post was submitted on 24 Nov 2023

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Renesas Launches the 32-bit RX23E-B, a Microcontroller with Integrated Analog Front-End (www.hackster.io)

submitted 2 years ago by minnix@lemux.minnix.dev to c/microcontrollers@lemux.minnix.dev

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[–] dragontamer@lemmy.world 1 points 2 years ago* (last edited 2 years ago)

I missed this. 24-bits Differential with x128 PGA? Holy crap. I'm sure that's at a reduced sampling rate, but assuming a 2.048V reference, that's an ADC-step of 122 nV (nanoVolts) on that 24th bit on the end.

Needless to say, there'd be noise issues at that level. Extremely high precision, for the people who can design a high-precision circuit. Then again, you probably can run it at 16-bits or less (or something more reasonable / easier to do).