ADE7753 Single Phase Multifunction Energy Metering IC with di/dt Input (Serial-Port Interface)

The interrupt status register indicates the nature of the interrupt, and the interrupt enable register controls which event produces an output on the IRQ pin, an open-drain, active low logic output. The ADE7753 is available in a 20-lead SSOP package. NOTE: For polyphase system designs, the ADE7758 is recommended.

The ADE77531 features proprietary ADCs and DSP for high accuracy over large variations in environmental conditions and time. The ADE7753 incorporates two second-order 16-bit Σ-Δ ADCs, a digital integrator (on CH1), reference circuitry, temperature sensor, and all the signal processing required to perform active, reactive, and apparent energy measurements, line-voltage period measurement, and rms calculation on the voltage and current. The selectable on-chip digital integrator provides direct interface to di/dt current sensors such as Rogowski coils, eliminating the need for an external analog integrator and resulting in excellent long-term stability and precise phase matching between the current and voltage channels.

The ADE7753 provides a serial interface to read data, and a pulse output frequency (CF), which is proportional to the active power. Various system calibration features, i.e., channel offset correction, phase calibration, and power calibration, ensure high accuracy. The part also detects short duration low or high voltage variations. The positive-only accumulation mode gives the option to accumulate energy only when positive power is detected. An internal no-load threshold ensures that the part does not exhibit any creep when there is no load. The zero-crossing output (ZX) produces a pulse that is synchronized to the zero-crossing point of the line voltage. This signal is used internally in the line cycle active and apparent energy accumulation modes, which enables faster calibration.

NOTE: For polyphase system designs, the ADE7758 is recommended.

Features and Benefits

High accuracy; supports IEC 60687/61036/61268 and IEC 62053-21/62053-22/62053-23
On-chip digital integrator enables direct interface to current sensors with di/dt output
A PGA in the current channel allows direct interface to shunts and current transformers
Active, reactive, and apparent energy; sampled waveform; current and voltage rms
Less than 0.1% error in active energy measurement over a dynamic range of 1000 to 1 at 25°C
Positive-only energy accumulation mode available

On-chip user programmable threshold for line voltage surge and SAG and PSU supervisory
Digital calibration for power, phase, and input offset
On-chip temperature sensor (±3°C typical)
SPI® compatible serial interface
Pulse output with programmable frequency
Interrupt request pin (IRQ) and status register

Analog to Digital Converters

Data Sheets

Document	note
ADE7753: Single-Phase Multifunction Metering IC with di/dt Sensor Interface Data Sheet (Rev. C)	PDF 1478 kB

Application Notes

Document	note
AN-564: A Power Meter Reference Design Based on the ADE7756 (Rev. 0)	PDF 4410 kB
AN-639: Frequently Asked Questions (FAQs) Analog Devices Energy (ADE) Products (Rev. A)	PDF 165 kB
AN-758: Creating a Reactive Energy Pulse Output Based on the ADE7753 (Rev. 0)	PDF 358 kB

Associations & Standards

Document	note
Energy Information Administration
The Energy Foundation
New South Wales Wholesale State Electricity Market
National Electrical Mfg Assoc.
The Business Council for Sustainable Energy
Utility Industry Group
Electric Power Research Institute
California Public Utilities Commission
U.S. Department of Energy's Home Page
Energy Efficient and Renewable Energy Network
International Engineering Consortium
United Telecom Council
American Public Power Association
American Council for an Energy-Efficient Economy
National Association of Regulatory Utility Commissioners
American National Standards Institute
Edison Electric Institute