This product is a high-precision multifunction energy meter IC that supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards and is compatible with 3-phase, 3 or 4-wire (delta or wye), and other 3-phase services. It provides total (fundamental and harmonic) active, reactive (ADE7878, ADE7868 and ADE7858 only), and apparent energy, and fundamental active/reactive energy (ADE7878 only) on each phase and on the overall system
The ADE7854, ADE7858, ADE7868, and ADE7878 are high‑accuracy, 3‑phase energy‑metering ICs with flexible serial interfaces (SPI, I²C, and HSDC) and three pulse outputs. They integrate sigma‑delta ADCs, a digital integrator, and on‑chip calibration features to provide total, fundamental, and reactive energy measurements across a wide range of supply voltages (2.4 V to 3.7 V) and temperatures.
These devices are intended for energy‑metering systems and support standards such as EN 50470‑1, EN 50470‑3, IEC 62053‑21/22/23. Power‑management modes (normal, reduced, low‑power, and sleep) ensure continuous operation even in tamper situations, while dedicated pins and high‑speed data capture enable detailed waveform sampling and power‑quality monitoring.
| Supply Voltage (VDD) | 3.3 V + 10% |
|---|---|
| Operating Temperature | ‑40 °C to +85 °C |
| Active Energy Measurement Error (per phase) | 0.1 % over dynamic range 1000 : 1 |
| Reactive Energy Measurement Error (per phase) | 0.1 % over dynamic range 1000 : 1 |
| Output Frequency Variation | 0.01 % |
It supports EN 50470‑1, EN 50470‑3, IEC 62053‑21, IEC 62053‑22, and IEC 62053‑23.
The devices provide SPI, I²C, and a high‑speed data capture (HSDC) serial interface.