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)