This document describes the features of the Poly Phase Multifunction Energy Metering IC with Per Phase Information ADE7758 from Dinghao. The product offers high accuracy, compatibility with various 3-phase services, support for multiple standards, and provides various energy and waveform data.
The ADE7758 is a poly‑phase multifunction energy‑metering IC that measures active, reactive and apparent energy in 3‑phase WYE or DELTA configurations. It offers high accuracy (≤0.1 % active‑energy error) and supports IEC metering standards. The device includes on‑chip calibration for phase, rms offset and power, as well as programmable voltage‑SAG and over‑voltage thresholds.
Data is accessed via an SPI‑compatible serial interface, and the part provides two pulse outputs (active power and selectable reactive/apparent power). The IC is supplied by a single 5 V rail (≈70 mW typical) and is packaged in a 24‑lead wide‑body SOIC.
| Active Energy Measurement Error | 0.1 % typ |
|---|---|
| Active Power Measurement Bandwidth | 14 kHz |
| IRMS Measurement Error | 0.5 % typ |
| VRMS Measurement Bandwidth | 260 Hz |
| Temperature Coefficient | 30 ppm/°C typ |
It operates from a single 5 V supply and consumes about 70 mW typical.
The device has two pulse outputs: one for active power and a selectable one for reactive or apparent power.
The ADE7758 uses an SPI‑compatible serial interface for register reads and writes.
It is offered in a 24‑lead wide‑body SOIC package.