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MKM33 AFE Modular

Question asked by hua su on Nov 21, 2014
Latest reply on Nov 27, 2014 by hua su

use AFE module, found that the voltage input differential voltage and the calculated value is different, the difference of about 13%. For example, into a differential signal 200mV, read out from the results of balance device value is 3175931, then the calculated results should be 227mv (3175931/8388607 (0x7FFFFF) * 600 (MV) = 227mv), so the measured value is 227mv butinto value is 200mv. and therefore the result is wrong. Don't know why