GENERAL DESCRIPTION
The ADE7759 is an accurate active power and energy measurement IC with a serial interface and a pulse output. The ADE7759 incorporates two second-order Σ-∆ ADCs, a digital integrator (on CH1), reference circuitry, temperature sensor, and all the signal processing required to perform active power and energy measurement.
   
FEATURES
    High Accuracy, Supports IEC 687/1036
    On-Chip Digital Integrator Allows Direct Interface with
        Current Sensors with di/dt Output Such as Rogowski Coil
    Less Than 0.1% Error over a Dynamic Range of 1000 to 1
    On-Chip User-Programmable Threshold for Line Voltage
        SAG Detection and PSU Supervisory
    Supplies Sampled Waveform Data and Active Energy
    (40 Bits)
    Digital Power, Phase, and Input DC Offset Calibration
    On-Chip Temperature Sensor (Typical 1 LSB/°C Resolution)
    SPI Compatible Serial Interface
    Pulse Output with Programmable Frequency
    Interrupt Request Pin (IRQ) and IRQ Status Register
    Proprietary ADCs and DSP provide High Accuracy over
        Large Variations in Environmental Conditions and Time
    Reference 2.4 V ± 8% (20 ppm/°C Typical) with External
        Overdrive Capability
    Single 5 V Supply, Low Power Consumption (25 mW
        Typical)