ADE7758

PRODUCTION

Poly Phase Multifunction Energy Metering IC with Per Phase Information

Data Sheet (Rev. E) Product Selection Table

Part Models: 2
1ku List Price: Starting From $9.44

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Overview

Highly accurate; supports IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23
Compatible with 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services
Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C
Supplies active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data

Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency
Digital power, phase, and rms offset calibration
On-chip, user-programmable thresholds for line voltage SAG and overvoltage detections
See Data Sheet for Additional Information

The ADE7758 is a high accuracy, 3-phase electrical energy measurement IC with a serial interface and two pulse outputs. The ADE7758 incorporates second-order Σ-Δ ADCs, a digital integrator, reference circuitry, a temperature sensor, and all the signal processing required to perform active, reactive, and apparent energy measurement and rms calculations.

The ADE7758 is suitable to measure active, reactive, and apparent energy in various 3-phase configurations, such as WYE or DELTA services, with both three and four wires. The ADE7758 provides system calibration features for each phase, that is, rms offset correction, phase calibration, and power calibration. The APCF logic output gives active power information, and the VARCF logic output provides instantaneous reactive or apparent power information.

The ADE7758 has a waveform sample register that allows access to the ADC outputs. The part also incorporates a detection circuit for short duration low or high voltage variations. The voltage threshold levels and the duration (number of half-line cycles) of the variation are user programmable. A zero-crossing detection is synchronized with the zero-crossing point of the line voltage of any of the three phases. This information can be used to measure the period of any one of the three voltage inputs. The zero-crossing detection is used inside the chip for the line cycle energy accumulation mode. This mode permits faster and more accurate calibration by synchronizing the energy accumulation with an integer number of line cycles.

Data is read from the ADE7758 via the SPI serial interface. The interrupt request output (IRQ) is an open-drain, active low logic output. The IRQ output goes active low when one or more interrupt events have occurred in the ADE7758. A status register indicates the nature of the interrupt. The ADE7758 is available in a 24-lead SOIC package.

Part Models: 2
1ku List Price: Starting From $9.44

Documentation

Frequently Asked Question 1

FAQ 09/05/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADE7758ARWZ	24-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADE7758ARWZRL	24-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Nov 21, 2011 - 11_0235 ADE7751/3/5/8 Wafer Fabrication Qualification At Magnachip Semiconductor Ltd.
		PCN11_0235_Form Material_Report Qualification Plan Summary
ADE7758ARWZ	PRODUCTION
ADE7758ARWZRL	PRODUCTION
Feb 7, 2011 - 10_0003 Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor
		PCN10_0003_Form Material_Report Qualification Plan Summary
ADE7758ARWZ	PRODUCTION
ADE7758ARWZRL	PRODUCTION
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
		PCN04_0080_Form Material_Report Reliability Report Reliability Report
ADE7758ARWZ	PRODUCTION
ADE7758ARWZRL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Evaluation Software 1

ADE7758 Evaluation Board Software

ADE7758 Evaluation Board Software (zip, 12.9MB)

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Hardware Ecosystem

Parts	Product Life Cycle	Description
ADE7858A	PRODUCTION	Polyphase Multifunction Energy Metering IC With Per Phase Active And Reactive Powers
ADE9078	PRODUCTION	High Performance Polyphase Energy Measurement IC

Evaluation Kits

ADE7758 Evaluation Board

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Product Details

This documentation describes the ADE7758 evaluation kit Hardware and Software functionality. The evaluation board (watt/VA/VAR-hour meter) is configured via the parallel port of a PC. The data interface between the evaluation board and the PC is fully isolated. Windows™ based software is provided with the evaluation board, which allows it to be quickly configured as an energy meter.

The ADE7754/ADE7758 evaluation board and this documentation, together with the ADE7758 data sheet, provide a complete evaluation platform for the ADE7758. The ADE7758 evaluation board can be configured by setting jumpers.

The evaluation board has been designed so that the ADE7758 can be evaluated in the end application, i.e., Energy Meter. Using the appropriate transducers on the current channels (e.g., CTs) the evaluation board can be connected to a test bench or high voltage (240 V rms) test circuit. On-board resistor divider networks provide the attenuation for the line voltages. This application note also describes how the current transducers should be connected for the best performance. The evaluation board requires two external 5 V power supplies (one is required for isolation purposes) and the appropriate current transducers.