Add to Signal Chain Designer

ADE7757A:  Single Phase Energy Metering IC with Integrated Oscillator and Reverse Power Indication

Product Details


The ADE7757A (AD71056) is an accurate electrical energy measurement integrated circuit. It is a pin reduction version of ADE7755 with an enhancement of a precise oscillator circuit that serves as a clock source to the chip. The ADE7757A eliminates the cost of an external crystal or resonator, thus reducing the overall cost of a meter built with this IC. The chip directly interfaces with shunt resistor.

The ADE7757A provides instantaneous and average real power based on line current and voltage. The part specifications surpass the accuracy requirements as quoted in the IEC61036 standard. The only analog circuitry used in the ADE7757A is in the ADCs and reference circuit. All other signal processing (e.g., 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 small analog input full-scale allows the chip to interface to low value shunt resistances without losing dynamic range. The ADE7757A is available in 16-lead SOIC narrow-body package.

The Application Note AN-679 can be used as a basis for a description of an IEC62053-21 low cost, watt-hour meter reference design..

NOTE: For polyphase system designs, the ADE7752A is recommended.

FEATURES and BENEFITS

  • Exceeds IEC62053-21
  • Less than 0.1% Active Energy Error Over Dynamic Range of 500:1
  • Active Energy Measurement
  • High Frequency Pulse Output
  • Current sensor interface for current transformers or shunts
  • On-chip Temperature Sensor and Voltage Reference (2.45 V)
  • Low Power (20 mW typical)
  • Reverse Power Indication (REVP)

Functional Block Diagram for ADE7757A

Of Note ...

The AD71056AR part number replaces the ADE7757AAR models. Please review the AD71056AR datasheet prior to ordering.

Documentation

Title Content Type File Type
AD71056: Energy Metering IC with Integrated Oscillator and Reverse Polarity Indication Data Sheet (Rev A, 10/2006) (pdf, 406 kB) Data Sheets PDF
AN-679: A Low Cost Watt-Hour Energy Meter Based on the ADE7757  (pdf, 2661 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
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
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
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
The Hot 100 products of 2006
(EDN, 12/15/2006)
Product Reviews HTML
Energy Meter Chips
(Components in Electronics, 11/2006)
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
Analog ICs that meter an energy-sensitive world. Overview HTML
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

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADE7757A Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD71056AR Status: Obsolete 16 ld SOIC 16 Ind Tube, 48 - - N  Material Info Notify Me Contact ADI
AD71056ARZ Status: Production 16 ld SOIC 16 Ind Tube, 48 $1.17 $1.17 Y  Material Info PCN Purchase Sample
AD71056ARZ-RL Status: Production 16 ld SOIC 16 Ind Reel, 2500 - $1.17 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.

ADE7757A Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADE7757AEBZ Status: Production Evaluation Board - Yes - Contact ADI

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.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close