Hot-selling and scarce ADE7751ARSZ Energy Metering IC with On-Chip Fault Detection SSOP24 spot stock

Product Descriptions

The ADE7751 is a high-accuracy, fault-tolerant electrical energymeasurement IC that is intended for use with 2-wire distributionsystems . The part specifications surpass the accuracy require -ments as quoted in the IEC1036 standard .

The only analog circuitry used in the ADE7751 is in the ADCsand reference circuit . All other signal processing (e.g., multiplication and filtering) is carried out in the digital domain . Thisapproach provides superior stability and accuracy over extremesin environmental conditions and over time .

The ADE7751 incorporates a novel fault detection scheme thatwarns of fault conditions and allows the ADE7751 to continueaccurate billing during a fault event . The ADE7751 does thisby continuously monitoring both the phase and neutral (return)currents . A fault is indicated when these currents differ by morethan 12.5%.Billing is continued using the larger of the two currents .

Product Features

High Accuracy, Surpasses 50 Hz/60 Hz IEC 687/1036

Less than 0.1% Error over a Dynamic Range of 500 to 1

Supplies Average Real Power on the Frequency

Outputs F1 and F2

High-Frequency Output CF Is Intended for Calibration

and Supplies Instantaneous Real Power

Continuous Monitoring of the Phase and Neutral

Current Allows Fault Detection in 2-Wire

Distribution Systems

ADE7751 Uses the Larger of the Two Currents (Phase

or Neutral) to Bill—Even During a Fault Condition

Two Logic Outputs (FAULT and REVP) Can Be Used to

Indicate a Potential Miswiring or Fault Condition

Direct Drive for Electromechanical Counters and

2-Phase Stepper Motors (F1 and F2)

A PGA in the Current Channel Allows the Use of Small

Values of Shunt and Burden Resistance

Proprietary ADCs and DSP Provide High Accuracy over

Large Variations in Environmental Conditions and Time

On-Chip Power Supply Monitoring

On-Chip Creep Protection (No Load Threshold)

On-Chip Reference 2.5 V   8% (30 ppm/C Typical)

with External Overdrive Capability

Single 5 V Supply, Low Power (15 mW Typical)

Low-Cost CMOS Process

Product Specification

Product Photos

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