Datenblatt-Suchmaschine für elektronische Bauteile |
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ADE7757EB Datenblatt(PDF) 1 Page - Analog Devices |
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ADE7757EB Datenblatt(HTML) 1 Page - Analog Devices |
1 / 11 page Preliminary Technical Data PRELIMINARY TECHNICAL DATA REV. PrF Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a EVAL-ADE7757EB One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, USA Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., June 2002 Evaluation Board Documentation ADE7757 Energy Metering IC FUNCTIONAL BLOCK DIAGRAM FEATURES Single +5 V Power Supply Easy Connection of External Transducers via Screw Terminals Easy Modification of Signal Conditioning Components Using PCB Sockets Trim Pot for Analog Calibration of Meter Constant Optically Isolated Output for Calibration/Test Purposes External Reference Option Available for Reference Evaluation GENERAL DESCRIPTION The ADE7757 is a high accuracy energy measurement IC with integrated oscillator. The part specifications surpass the accuracy requirements as quoted in the IEC1036 stan- dard. The ADE7757 supplies average real power information on the low frequency outputs F1 and F2. These logic outputs may be used to directly drive an electromechanical counter or interface to an MCU. The evaluation board provides screw connectors for easy connection to an external counter. The CF logic out- put gives instantaneous real power information. This output is intended to be used for calibration purposes. The evaluation board allows this logic output to be connected to an LED or optoisolator. The ADE7757 evaluation board can easily be converted into an energy meter by the addition of a local power supply and the connection of the appropriate current sensor. A large amount of prototype area is made available on the evaluation board for this purpose. V1P V1N ADE7757 VPLUS VMINUS CFOUT F1 F2 VDD DGND V2N V2P VCC AD780 74HC08 CF PROTOTYPE AREA H11L1 AGND |
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