The ADE7858ACPZ is a high accuracy, 3-phase Electrical Energy Measurement IC with serial interfaces and three flexible pulse outputs. The ADE78xx devices incorporate second-order Σ-∆ analog-to-digital converters (ADCs), a digital integrator, reference circuitry and all of the signal processing required to perform, total active, reactive and apparent energy measurement and rms calculation. A fixed function digital signal processor (DSP) executes this signal processing. The DSP program is stored in the internal ROM memory. The device is suitable for measuring active, reactive and apparent energy in various 3-phase configurations, such as wye or delta services, with both three and four wires. The device provides system calibration features for each phase, that is, RMS offset correction, phase calibration and gain calibration.
● Supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22 and IEC 62053-23 standards
● Compatible with 3-phase, 3- or 4-wire (delta or wye) and other 3-phase services
● Less than 0.1% Error in active and reactive energy over a dynamic range of 1000 to 1 at TA = 25°C
● Less than 0.2% Error in active and reactive energy over a dynamic range of 3000 to 1 at TA = 25°C
● Supports current transformer and di/dt current sensors
● Supplies sampled waveform data on all three phases and on neutral current
● Low power battery mode monitors phase currents for v
● Battery supply input for missing neutral operation
● Phase angle measurements in both current and voltage channels with a typical 0.3° error
● 1.2V (drift +5ppm/°C typical) Reference with external overdrive capability
● Flexible I²C, SPI and HSDC serial interfaces
