AD7750

Single Phase Product-to-Frequency Converter for Multiple Applications

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Overview

The AD7750 is a Product-to-Frequency Converter (PFC) that can be configured for power measurement or voltage-to-frequency conversion. The part contains the equivalent of two channels of A/D conversion, a multiplier, a digital-to-frequency converter, a reference and other conditioning circuitry. Channel 1 has a differential gain amplifier with selectable gains of 1 or 16. Channel 2 has a differential gain amplifier with a gain of 2. A high-pass filter can be switched into the signal path of Channel 1 to remove any offsets. The most popular use of this general purpose integrated circuit is for solid state energy meters.

PLEASE NOTE: The AD7750 is not recommended for new designs. Please review our ADE7755 product for your application requirements.

Documentation

Technical Articles 8

Solid State Solutions For Electricity Metrology 05/25/1999

Tapping The Potential Of Electronic Energy Metering 11/25/2002

IC Technology and Failure Mechanisms - Understanding Reliability Standards Can Raise Quality of Meters 06/01/2004

How Solid Is Your Solid-State Energy Meter? Not All Ics Are Created Equal. 01/01/2000

Measuring Harmonic Energy with a Solid State Energy Meter 09/30/2003

Measuring Reactive Power in Energy Meters 01/01/2002

Digital Energy Meters by the Millions 04/01/2000

Trusting Integrated Circuits in Metering Applications 01/01/2000

Association & Standard 17

American Council for an Energy-Efficient Economy 01/01/2000

Electric Power Research Institute 01/01/2000

Energy Information Administration 01/01/2000

International Engineering Consortium 01/01/2000

National Electrical Mfg Assoc. 01/01/2000

The Energy Foundation 01/01/2000

Edison Electric Institute 01/01/2000

American Public Power Association 01/01/2000

National Association of Regulatory Utility Commissioners 01/01/2000

United Telecom Council 01/01/2000

California Public Utilities Commission 01/01/2000

Utility Industry Group 01/01/2000

American National Standards Institute 01/01/2000

New South Wales Wholesale State Electricity Market 01/01/2000

The Business Council for Sustainable Energy 01/01/2000

Energy Efficient and Renewable Energy Network 01/01/2000

U.S. Department of Energy's Home Page 01/01/2000

Obsolete Data Sheet 1

AD7750: Product-To-Frequency Converter Obsolete Data Sheet 03/08/2008

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

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