Add to Signal Chain Designer

ADE7758:  Poly Phase Multifunction Energy Metering IC with Per Phase Information

Product Details


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.

FEATURES and BENEFITS

  • 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

Functional Block Diagram for ADE7758

Documentation

Title Content Type File Type
ADE7758: Poly Phase Multifunction Energy Metering IC with Per Phase Information Data Sheet  (Rev E, 10/2011) (pdf, 1105 kB) Data Sheets PDF
AN-1334: Impact of Adding a Neutral Attenuation Network in a 3P4W Wye System  (pdf, 316 kB) Application Notes PDF
AN-750: ADE7758 Phase Dropout Detection for VAR Calculation  (pdf, 79 kB) 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
Reactive Energy Measurement Made Simple  (pdf, 1678 kB)
by Natasha Wan, Analog Devices, Inc. Analog Devices' new energy metering Ics now allow utility companies to obtain accurate energy usage measurements more easily than ever before. (Metering International, Issue 4 2003)
Technical Articles 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
Metering IC at ADI - Product Features
  • ADE7752  (pdf, 730 kB)
    Detailed Description of ADE7752 from Block Diagram to Key Specifications
  • ADE7753  (pdf, 500 kB)
    Detailed Description of ADE7753 from Block Diagram to Key Specifications
  • ADE7754  (pdf, 912 kB)
    Detailed Description of ADE7754 from Block Diagram to Key Specifications
  • ADE7756  (pdf, 1252 kB)
    Detailed Description of ADE7756 from Block Diagram to Key Specifications
  • ADE7758  (pdf, 1185 kB)
    Detailed Description of ADE7758 from Block Diagram to Key Specifications
  • ADE7759  (pdf, 416 kB)
    Detailed Description of ADE7759 from Block Diagram to Key Specifications
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

ADE7758 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADE7758ARWZ Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $6.49 $6.49 Y  Material Info PCN Purchase Sample
ADE7758ARWZRL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $6.49 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.

ADE7758 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADE7758ZEB Status: Production Evaluation Board $253.00 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.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close