Can someone point me in the direction of where I can find out what bit number a/d converter is used in the BMV shunt? I hear rumors that it's a 12-bit converter, but I can't find any real info.
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Victron BMV Shunt - what internal a/d converter used?
In other words, I want to know exactly how accurate these shunts are. Yes I know it’s supposed to be accurate to +-0.4%, with a resolution of 0.1, but how fine does the analog to digital converter do it’s sampling? If it’s a 12 bit converter, it will have 4096 samples, which gives a 122mA per sample. Does that sound correct to anyone? Or do they use a different kind of A/D converter?
The BMV uses a very nice MSP430 with 24bit Sigma-Delta ADCs.
Thank you wkirby! Any chance you have a link or pdf that specify that it’s indeed a 24 bit adc?
My apologies for stating my question a bit weird, I meant that do you have any documentation that specify that the BMV indeed uses the MSP430? I’d love it to be true, I just need to make sure please
I don't have any official documentation of course, but I can see it with my eyes.
