ade7880 Analog Devices, Inc., ade7880 Datasheet

ade7880

Manufacturer Part Number

ade7880

Description

Polyphase Multifunction Energy Metering Ic With Harmonic Monitoring

Manufacturer

Analog Devices, Inc.

Datasheet

1.ADE7880.pdf (103 pages)

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Preliminary Technical Data

FEATURES

Highly accurate; supports IEC 62053-21, IEC 62053-22, IEC

Supports IEC 61000-4-7 Class I and II accuracy specification

Compatible with 3-phase, 3- or 4-wire (delta or wye), and

Supplies rms, active, reactive and apparent powers, power

Supplies rms and harmonic distortions of all harmonics

Less than 1% error in harmonic current and voltage rms over

Less than 1% error in harmonic active and reactive powers

Supplies total (fundamental and harmonic) active and

Less than 0.1% error in active energy over a dynamic range

Less than 0.2% error in active energy over a dynamic range

Less than 0.1% error in fundamental reactive energy over a

Less than 0.2% error in fundamental reactive energy over a

Supports current transformer and di/dt current sensors

Dedicated ADC channel for neutral current input

Less than 0.1% error in voltage and current rms over a

Supplies sampled waveform data on all three phases and on

Selectable no load threshold levels for total and

Battery supply input for missing neutral operation

Phase angle measurements in both current and voltage

Wide-supply voltage operation: 2.4 V to 3.7 V

Reference: 1.2 V (drift 10 ppm/°C typical) with external

Single 3.3 V supply

40-lead lead frame chip scale package (LFCSP), Pb-free, pin

Operating temperature: −40° to +85°C

Rev. PrE

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

62053-23, EN 50470-1, EN 50470-3 and ANSI C12.20

standards

other 3-phase services

factor, THD+N and harmonic distortion of all harmonics

within 2.8 KHz pass band on all phases

within 2.8 KHz pass band on neutral current

a dynamic range of 2000:1 at T

over a dynamic range of 2000:1 at T

apparent energy and fundamental active/reactive energy

on each phase and on the overall system

of 1000 to 1 at T

of 5000 to 1 at T

dynamic range of 1000 to 1 at T

dynamic range of 5000 to 1 at T

dynamic range of 1000 to 1 at T

neutral current

fundamental active and reactive powers, as well as for

apparent powers

channels with a typical 0.3° error

overdrive capability

for pin compatible with ADE7854, ADE7858, ADE7868 and

ADE7878

= 25°C

Polyphase Multifunction Energy Metering IC

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

Flexible I

APPLICATIONS

Energy metering systems

Power quality monitoring

Solar inverters

Process monitoring

Motor control

Protective devices

GENERAL DESCRIPTION

The ADE7880

measurement IC with serial interfaces and three flexible pulse

outputs. The ADE7880 device incorporates

delta (Σ-∆) analog-to-digital converters (ADCs), a digital

integrator, reference circuitry, and all of the signal processing

required to perform the total (fundamental and harmonic) active,

and apparent energy measurement, rms calculations, as well as

fundamental-only active and reactive energy measurement. In

addition, the ADE7880 computes the rms of harmonics on the

phase and neutral currents and on the phase voltages, together

with the active, reactive and apparent powers, the power factor

and harmonic distortion on each harmonic for all phases. Total

Harmonic Distortion Plus Noise (THD+N) is computed for all

currents and voltages. A fixed function digital signal processor

(DSP) executes this signal processing. The DSP program is

stored in the internal ROM memory.

The ADE7880 is suitable for measuring active, reactive, and

apparent energy in various 3-phase configurations, such as wye or

delta services, with both three and four wires. The ADE7880

provides system calibration features for each phase, that is, rms

offset correction, phase calibration, and gain calibration. The

CF1, CF2, and CF3 logic outputs provide a wide choice of power

information: total active powers, apparent powers, or the sum of

the current rms values, and fundamental active and reactive

powers.

The ADE7880 contains waveform sample registers that allow

access to all ADC outputs. The devices also incorporate power

quality measurements, such as short duration low or high

voltage detections, short duration high current variations, line

voltage period measurement, and angles between phase voltages

and currents. Two serial interfaces, SPI and I

communicate with the ADE7880. A dedicated high speed

interface, the high speed data capture (HSDC) port, can be used

C, SPI, and HSDC serial interfaces

with Harmonic Monitoring

is high accuracy, 3-phase electrical energy

second-order sigma-

C, can be used to

ADE7880

www.analog.com

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