ADE7762 is a multiphase energy metering IC from Analog Devices. It supports 3-phase 3-wire delta and 3-phase 4-wire Wye configurations and provides average active power, instantaneous active power, voltage, current, frequency and other measurement data. It also alerts for phase dropouts, power reversals, and other abnormal conditions through LED indicator pins.
The ADE7762 is a high‑accuracy polyphase energy‑metering integrated circuit that measures active power on three phases and provides phase‑drop and sequence detection. It integrates proprietary ADCs, DSP, on‑chip reference and power‑supply monitoring, and operates from a single 5 V supply.
The device offers low‑frequency logic outputs (F1, F2) for average power, a high‑frequency CF output for instantaneous power calibration, and LED driver pins for per‑phase status. Pin‑out, timing diagrams, absolute maximum ratings and ordering information are detailed for designers.
| Supply voltage (Vop) | 5 V ±5% |
|---|---|
| On‑chip reference voltage | 2.4 V |
| CLKIN input impedance (DC) | 370–410 kΩ |
| Operating temperature range | –40°C to +85°C |
| Package | 28‑Lead SOIC |
The device operates from a single 5 V supply with a tolerance of ±5 %.
Each phase has an LED driver pin (LED_A, LED_B, LED_C) that shows dropout via the multiplexed LED_CTRL output.
The CF logic output provides instantaneous active‑power information for calibration purposes.