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Differential 16 bit ADC CMRR

Question asked by Patrick Savage-Dickson on Nov 19, 2015
Latest reply on Nov 19, 2015 by xiangjun.rong

Hi Everyone

 

I have spent some time trying to discover the common mode rejection ratio of the Kinetis K series internal ADC configured in 16 bit differential mode and have ploughed through datasheets, reference manuals and application notes without success. I have also performed web searches with similar results. CMRR is surely a salient parameter for any differential device and one would expect this to be clearly stated somewhere as without this detail it is practically impossible to estimate the degree of immunity to external interfering signals. Would anyone be party to this information?

 

Regards

 

Patrick

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