ADE7768 is an energy metering IC with integrated oscillator and positive power accumulation. It features high accuracy, supports 50 Hz/60 Hz output frequency, high-frequency output calibration, and power supply.
The ADE7768 is a high‑accuracy energy‑metering IC that integrates an on‑chip oscillator to eliminate the need for an external crystal. It provides positive‑only average real‑power outputs (F1, F2) that can directly drive electromechanical counters or stepper motors, and a high‑frequency CF output for calibration.
The device operates from a single 5 V supply, offers on‑chip reference monitoring, and includes protection features such as no‑load threshold and negative‑power detection (REVP). It is supplied in a 16‑lead narrow‑body SOIC package and is intended for low‑cost watt‑hour meter designs.
| Supply voltage (Vop) | 5 V ±5% (4.75 V – 5.25 V) |
|---|---|
| Channel V1 maximum signal level | +30 mV max |
| Channel V2 maximum signal level | +165 mV max |
| On‑chip reference voltage | 2.45 V nominal |
| Operating temperature range | -40 °C to +85 °C |
| Typical power consumption | 20 mW |
| Oscillator frequency (nominal) | 450 kHz |
| Logic input high voltage (SCF, S0, S1) | 24 V min |
| Package type | 16‑lead narrow‑body SOIC |
The device operates with Vop of 5 V ± 5%, which corresponds to a range of 4.75 V to 5.25 V.
The REVP logic output goes high when negative power is detected, signaling a phase angle greater than 90°.
The on‑chip reference provides a nominal voltage of 2.45 V with a typical temperature coefficient of 20 ppm/°C.