ADE7878: True RMS or Calculated RMS

Document created by analog-archivist Employee on Feb 23, 2016
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Are the RMS values with respect to V and I true RMS or calculated RMS?


The ADE7878 computes the true rms values. Please see ADE7878 rev F data sheet,
page 40. It explains that the ADE7878 computes exactly the expression 10, so
the rms calculation is a good one. As the bandwidth of the ADC measurements is
2kHz (see spec table at page9), signifies that the rms results contains all
harmonics up to 2kHz.