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ADE7755:  Energy Metering IC with Pulse Output

Product Details


The ADE7755 is a high accuracy electrical energy measurement IC. The part specifications surpass the accuracy requirements as quoted in the IEC 1036 standard.

The only analog circuitry used in the ADE7755 is in the ADCs and reference circuit. All other signal processing (for example, multiplication and filtering) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.

The ADE7755 supplies average active power information on the low frequency outputs, F1 and F2. These logic outputs can be used to directly drive an electromechanical counter or interface to an MCU. The CF logic output gives instantaneous active power information. This output is intended to be used for calibration purposes or for interfacing to an MCU.

The ADE7755 includes a power supply monitoring circuit on the AVDD supply pin. The ADE7755 remains in a reset condition until the supply voltage on AVDD reaches 4 V. If the supply falls below 4 V, the ADE7755 resets and no pulse is issued on F1, F2, and CF.

Internal phase matching circuitry ensures that the voltage and current channels are phase matched whether the HPF in Channel 1 is on or off. An internal no load threshold ensures that the ADE7755 does not exhibit any creep when there is no load.

The ADE7755 is available in a 24-lead SSOP package.

FEATURES and BENEFITS

  • High accuracy, surpasses 50 Hz/60 Hz IEC 687/IEC 1036
  • Less than 0.1% error over a dynamic range of 500 to 1
  • Supplies active power on the frequency outputs, F1 and F2
  • High frequency output CF is intended for calibration and supplies instantaneous active power
  • Synchronous CF and F1/F2 outputs
  • Logic output REVP provides information regarding the sign of the active power
  • Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2)
  • Please see data sheet for additional features.

Functional Block Diagram for ADE7755

Of Note ...

You may notice that Evaluation Tools, Application Notes and other supporting documents may refer to the AD7755. This material is still applicable to the ADE7755 because of the similarity between the two products.

Documentation

Title Content Type File Type
ADE7755: Energy Metering IC with Pulse Output Data Sheet (Rev A, 08/2009) (pdf, 331 kB) Data Sheets PDF
AN-639: Frequently Asked Questions (FAQs) Analog Devices Energy (ADE) Products  (pdf, 165 kB) Application Notes PDF
AN-559: A Low Cost Watt-Hour Energy Meter Based on the ADE7755  (pdf, 2913 kB)
  • Electromagnetic Emissions Test Report on Solid State Energy Meter  (pdf, 1037 kB)
    This report describes electromagnetic immunity testing performed on September 9, 1999 through September 10, 1999 on the Solid State Energy Meter. Testing was performed pursuant to IEC 1036:1996, a standard for alternating static watt-hour meters for active energy.
  • Electromagnetic Emissions Test Report on the AD7755  (pdf, 678 kB)
    This document describes electromagnetic emissions testing performed on the Energy Meter (AD7755) on September 8, 1999, pursuant to EN55022 requirements. It may be used to demonstrate compliance with the European Union emissions requirements pursuant to the EMC directive
  • ADE7755 Reference Board Design  (zip, 172 kB)
    In Gerber Format
    (zip, 176,278 bytes)
Application Notes PDF
Electrical World Recommended Reading HTML
Utility Automation Magazine Recommended Reading HTML
Meter Architecture Trade-offs  (pdf, 1056 kB)
Single-Chip versus Multi-Chip Solutions and Examples of Implementation with Single-Chip Metering IC (Watt-Only and Multi-Function)
Recommended Reading PDF
Utility Products Showcase Recommended Reading HTML
PCIM Power Electronic Systems Recommended Reading HTML
Power Engineering Recommended Reading HTML
Meter Background
  • Power Theory  (pdf, 386 kB)
    Definition Of Power/Energy, Power Calculations and Theory Behind ADE775x Power Calculations
  • Meter Configurations  (pdf, 888 kB)
    Wiring Standards, Tampering/Anti-Tampering Connections, Single Phase Stepper Motor and Microprocessor-Based Meters
  • Current Sensors  (pdf, 950 kB)
  • PCB Design  (pdf, 1603 kB)
Recommended Reading HTML
Sensors World Link Recommended Reading HTML
Metering International Recommended Reading HTML
Independent Energy Online Recommended Reading HTML
All-Electronic Power and Energy Meters
(Analog Dialogue, Vol. 33, No. 2, February, 1999)
Analog Dialogue HTML
Smart Metering Technology Promotes Energy Efficiency for a Greener World
Analog Dialogue, Volume 43 – January 2009
Analog Dialogue HTML
Microcontroller-Based Energy Metering using the AD7755
(Analog Dialogue, Vol. 33, No. 9, October, 1999)
Analog Dialogue HTML
Measuring Harmonic Energy with a Solid State Energy Meter  (pdf, 46 kB)
(Reprinted with permission from Metering International where it was first printed in Issue 3, 2003)
Technical Articles PDF
IC Technology and Failure Mechanisms - Understanding Reliability Standards Can Raise Quality of Meters  (pdf, 903 kB)
by Etienne Moulin, Analog Devices, Inc. (Reprinted with permission of India's Power Magazine, PowerLine, where it first appeared in the June 2004 issue)
Technical Articles PDF
RF Meets Power Lines: Designing Intelligent Smart Grid Systems that Promote Energy Efficiency
RF DesignLine, March 2010
Technical Articles HTML
Smart Metering Technology Promotes Energy Efficiency for a Greener World
Analog Dialogue, Volume 43 – January 2009
Technical Articles HTML
Digital Energy Meters by the Millions  (pdf, 85 kB)
by Paul Daigle, Analog Devices, Inc.
(Reprinted with permission of Utility Automation, where it was first published in 4/2000)
Technical Articles PDF
Trusting Integrated Circuits in Metering Applications  (pdf, 15 kB)
by Jared Jones, Analog Devices, Inc. (Published by and reprinted with permission of Metering International. The Chinese version of this article is published in the February 2003 Metering International, China Special Edition.)
Technical Articles PDF
Tapping The Potential Of Electronic Energy Metering  (pdf, 63 kB)
by Rachel Kaplan, Analog Devices, Inc. ... Today's homes seem more modern than ever, with knobs and dials re-placed by buttons and digital displays. But outside, electricity meters use electromechanical Ferraris technology developed 100 years ago.
(The article originally appeared in Electronic Design's November 25, 2002 Analog & Power Vision Supplement)
Technical Articles PDF
Measuring Reactive Power in Energy Meters  (pdf, 425 kB)
(Reprinted with permission from Metering International where it first appeared in Issue 1, 2002)
Technical Articles PDF
Solid State Solutions For Electricity Metrology  (pdf, 67 kB)
Significant changes are taking place in the electric energy industry worldwide. Deregulation of the utilities will produce a tougher competitive environment for the suppliers of electricity. Increased demand for electrical energy will require better management of distribution. Suppliers will need to identify ways of supplying a better level of service at a reduced cost. One way to do this is to install a solid state electricity meter.
Technical Articles PDF
How Solid Is Your Solid-State Energy Meter? Not All Ics Are Created Equal.  (pdf, 206 kB)
(Reprinted with permission from Metering International where it was first printed in Issue 4, 2000)
Technical Articles PDF
Exceeding 60-Year Life Expectancy from an Electronic Energy Meter  (pdf, 61 kB)
by Natasha Wan and Kevin Manning, Analog Devices, Inc.
(Paper presented at Metering Asia Pacific 2001 on February 20 - 22, 2001 in Kuala Lumpur, Malaysia)
Technical Articles PDF
National Association of Regulatory Utility Commissioners Associations & Standards HTML
International Engineering Consortium Associations & Standards HTML
Electric Power Research Institute Associations & Standards HTML
Energy Information Administration Associations & Standards HTML
Energy Efficient and Renewable Energy Network Associations & Standards HTML
Edison Electric Institute Associations & Standards HTML
New South Wales Wholesale State Electricity Market Associations & Standards HTML
National Electrical Mfg Assoc. Associations & Standards HTML
American Council for an Energy-Efficient Economy Associations & Standards HTML
Utility Industry Group Associations & Standards HTML
California Public Utilities Commission Associations & Standards HTML
I.E.E.E Power Engineering Society Associations & Standards HTML
The Business Council for Sustainable Energy Associations & Standards HTML
American National Standards Institute Associations & Standards HTML
United Telecom Council Associations & Standards HTML
U.S. Department of Energy's Home Page Associations & Standards HTML
American Public Power Association Associations & Standards HTML
The Energy Foundation Associations & Standards HTML
AD7755: Energy Metering ICs ... Quality you can trust  (pdf, 577 kB) Quality Assurance PDF
Energy Meter Chips
(Components in Electronics, 11/2006)
Product Reviews HTML
The Hot 100 products of 2006
(EDN, 12/15/2006)
Product Reviews HTML
Energy Measurement Solutions  (pdf, 2002 kB) Overview PDF
ADE Product Family Overview  (pdf, 1390 kB)
The portfolio includes single-phase products and polyphase products for stepper motor and LCD display meter designs, with five critical measurements available: watt, V rms, I rms, VA, and VAR.
Overview PDF
What are the benefits of the ADE energy metering devices? FAQs/RAQs HTML
Frequently Asked Questions (FAQs): Analog Devices Energy (ADE) Products  (pdf, 656 kB) FAQs/RAQs PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

ADE7755 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADE7755ARSZ Status: Production 24 ld SSOP 24 Ind Tube, 59 $1.55 $1.55 Y  Material Info PCN Purchase Sample
ADE7755ARSZRL Status: Production 24 ld SSOP 24 Ind Reel, 1500 - $1.55 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADE7755 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADE7755ZEB Status: Production Evaluation Board $168.67 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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