The ADE7752 is a high accuracy three phase electrical energy measurement IC. The part specifications surpass the accuracy requirements as quoted in the IEC1036 standard. The only analog circuitry used in the ADE7752 is in the ADCs and reference circuit. All other signal processing (e.g., multiplication, filtering and summation) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.