ADE7752A

Polyphase Energy Metering IC with Pulse Output ADE7752/ADE7752A FEATURES High accuracy, supports 50 Hz/60 Hz IEC62053-2x Less than 0.1% error over a dynamic range of 500 to 1 Compatible with 3-phase/3-wire delta and 3-phase/4-wire Wye configurations The ADE7752 supplies average real power on frequency outputs F1 and F2 High frequency output CF is intended for calibration and supplies instantaneous real power Logic output REVP indicates a potential miswiring or negative power for each phase Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2) Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time On-chip power supply monitoring On-chip creep protection (no load threshold) On-chip reference 2.4 V ±8% (20 ppm/°C typical) with external overdrive capability Single 5 V supply, low power 60 mW typical: ADE7752 30 mW typical: ADE7752A Low cost CMOS process GENERAL DESCRIPTION The ADE7752 is a high accuracy polyphase electrical energy measurement IC. The ADE7752A is a pin-to-pin compatible low power version of ADE7752. The functions of ADE7752 and ADE7752A are the same. Both products are referred to in the text of this data sheet as ADE7752. The part specifications surpass the accuracy requirements as quoted in the IEC62053-2x standard. The only analog circuitry used in the ADE7752 is in the analog-to-digital converters (ADCs) and reference circuit. All other signal processing (such as multiplication, f...