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

   The ADE7759 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)