ADE7758

Poly Phase Multifunction Energy Metering IC with Per Phase Information ADE7758 FEATURES High accuracy, supports IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23 Compatible with 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C Supplies active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency Digital power, phase, and rms offset calibration On-chip user programmable thresholds for line voltage SAG and overvoltage detections On-chip digital integrator enables direct interface-to-current sensors with di/dt output A PGA in the current channel allows direct interface to shunts and current transformers A SPI® compatible serial interface with IRQ Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time Reference 2.4 V (drift 30 ppm/°C typ) with external overdrive capability Single 5 V supply, low power (70 mW typ) GENERAL DESCRIPTION The ADE77581 is a high accuracy 3-phase electrical energy measurement IC with a serial interface and two pulse outputs. The ADE7758 incorporates second-order ∑-∆ ADCs, a digital integrator, reference circuitry, temperature sensor, and all the signal processing required to perform active, reactive, and apparent energy measurement and rms ...