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ADE7880ACPZ 데이터시트(PDF) 1 Page - Analog Devices

부품명 ADE7880ACPZ
상세설명  Polyphase Multifunction Energy Metering IC
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Polyphase Multifunction Energy Metering IC
with Harmonic Monitoring
Data Sheet
ADE7880
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Highly accurate; supports IEC 62053-21, IEC 62053-22,
IEC 62053-23, EN 50470-1, EN 50470-3, ANSI C12.20, and
IEEE1459 standards
Supports IEC 61000-4-7 Class I and Class II accuracy
specification
Compatible with 3-phase, 3- or 4-wire (delta or wye), and
other 3-phase services
Supplies rms, active, reactive and apparent powers, power
factor, THD, and harmonic distortion of all harmonics
within 2.8 kHz pass band on all phases
Supplies rms and harmonic distortions of all harmonics
within 2.8 kHz pass band on neutral current
Less than 1% error in harmonic current and voltage rms,
harmonic active and reactive powers over a dynamic
range of 2000 to 1 at TA = 25°C
Supplies total (fundamental and harmonic) active and
apparent energy and fundamental active/reactive energy
on each phase and on the overall system
Less than 0.1% error in active and fundamental reactive
energy over a dynamic range of 1000 to 1 at TA = 25°C
Less than 0.2% error in active and fundamental reactive
energy over a dynamic range of 5000 to 1 at TA = 25°C
Less than 0.1% error in voltage and current rms over a
dynamic range of 1000 to 1 at TA = 25°C
Battery supply input for missing neutral operation
Wide-supply voltage operation: 2.4 V to 3.7 V
Reference: 1.2 V (drift 10 ppm/°C typical) with external
overdrive capability
40-lead lead frame chip scale package (LFCSP), Pb-free, pin-
for-pin compatible with ADE7854, ADE7858, ADE7868 and
ADE7878
APPLICATIONS
Energy metering systems
Power quality monitoring
Solar inverters
Process monitoring
Protective devices
GENERAL DESCRIPTION
The ADE78801 is high accuracy, 3-phase electrical energy
measurement IC with serial interfaces and three flexible pulse
outputs. The ADE7880 device incorporates second-order sigma-
delta (Σ-Δ) 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 measurements, rms calculations, as well as
fundamental-only active and reactive energy measurements. 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, and the power
factor and harmonic distortion on each harmonic for all phases.
Total harmonic distortion (THD) 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 I2C, can be used to
communicate with the ADE7880. A dedicated high speed
interface, the high speed data capture (HSDC) port, can be used
in conjunction with I2C to provide access to the ADC outputs
and real-time power information. The ADE7880 also has two
interrupt request pins, IRQ0 and IRQ1, to indicate that an enabled
interrupt event has occurred. Three specially designed low power
modes ensure the continuity of energy accumulation when the
is in a tampering situation. The
is available
in the 40-lead LFCSP, Pb-free package, pin-for-pin compatible
with
,
,
, and
devices.
ADE7880
ADE7880
ADE7854 ADE7858 ADE7868
ADE7878
1 Patents Pending.


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