Key facts
- Brand
- Analog Devices
- Model
- ADE7761
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-02
Start here
Analog Devices AN-687 ADE7761 Energy Meter Application Note
This document details a meter design based on the ADE7761 for use in single-phase, 2-wire distribution systems. The design aims to meet Class 1 accuracy requirements according to IEC 61036 standards while incorporating electromagnetic compatibility considerations. The meter utilizes a highly accurate ADC system and an integrated oscillator within the ADE7761 chip.
Read onlineAnalog Devices ADE7761 specifications
| Measurement Error | 0.1 % of reading (typ) |
|---|---|
| Phase Error between Channels (PF = 0.8 Capacitive) | +0.05° max |
| Logic Input High Voltage | 24 V (min) |
| Logic Output High Voltage | 4 V (min) |
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Voltage (Vop) | 5 V ±5 % |
| Oscillator Frequency | 450 kHz |
| Input Bandwidth (‑3 dB) | 7 kHz (typ) |
| ADC Offset Error | 10 mV (max) |
Source: Analog Devices ADE7761 Datasheet
All Analog Devices ADE7761 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What type of electrical distribution systems is this meter designed for?
The meter is designed for use in single-phase, 2-wire distribution systems.
From: Analog Devices AN-687 ADE7761 Energy Meter Application Note
What happens to the power calculation if a fault occurs where phase and neutral currents differ by more than 6.25%?
The power calculation is based on the larger of the two currents.
From: Analog Devices AN-687 ADE7761 Energy Meter Application Note
What is the fault detection threshold for the ADE7761?
The device flags a fault when the phase and neutral currents differ by more than 6.25 %.
How does the ADE7761 indicate a missing neutral condition?
A missing neutral condition is indicated when the FAULT pin goes high.
What is the measurement error of the ADE7761?
The ADE7761 has a typical measurement error of 0.1 % of reading over a dynamic range of 500 : 1.
How does the ADE7761 detect a missing neutral condition?
It continuously monitors the input voltage; when no voltage is present, the FAULT pin goes high to indicate a missing neutral condition.