Datasheet 搜索 > AD转换器 > ADI（亚德诺） > ADE7758ARWZ 数据手册 > ADE7758ARWZ 其他数据使用手册 1/72 页
器件3D模型￥ 126.795
ADE7758ARWZ 其他数据使用手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
AD转换器
封装:
SOIC-24
描述:
ANALOG DEVICES ADE7758ARWZ.. 芯片, 多功能能量表, 多相, SOIC24
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
ADE7758ARWZ数据手册
Page:
of 72 Go
若手册格式错乱，请下载阅览PDF原文件
Poly Phase Multifunction Energy Metering
IC with Per Phase Information
Data Sheet
ADE7758
Rev. E
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.
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 ©2004–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Highly accurate; supports IEC 60687, IEC 61036, IEC 61268,
IEC 62053-21, IEC 62053-22, and IEC 62053-23
Compatible with 3-phase/3-wire, 3-phase/4-wire, and other
3-phase services
Less than 0.1% active energy error over a dynamic range of
1000 to 1 at 25°C
Supplies active/reactive/apparent energy, voltage rms,
current rms, and sampled waveform data
Two pulse outputs, one for active power and the other
selectable between reactive and apparent power with
programmable frequency
Digital power, phase, and rms offset calibration
On-chip, user-programmable thresholds for line voltage SAG
and overvoltage detections
An on-chip, digital integrator enables direct interface-to-
current sensors with di/dt output
A PGA in the current channel allows direct interface to
current transformers
An SPI®-compatible serial interface with
IRQ
Proprietary ADCs and DSP provide high accuracy over large
variations in environmental conditions and time
Reference 2.4 V (drift 30 ppm/°C typical) with external
overdrive capability
Single 5 V supply, low power (70 mW typical)
GENERAL DESCRIPTION
The ADE7758 is a high accuracy, 3-phase electrical energy
measurement IC with a serial interface and two pulse outputs.
The ADE7758 incorporates second-order Σ-∆ ADCs, a digital
integrator, reference circuitry, a temperature sensor, and all the
signal processing required to perform active, reactive, and
apparent energy measurement and rms calculations.
The ADE7758 is suitable to measure active, reactive, and
apparent energy in various 3-phase configurations, such as
WYE or DELTA services, with both three and four wires. The
ADE7758 provides system calibration features for each phase,
that is, rms offset correction, phase calibration, and power
calibration. The APCF logic output gives active power
information, and the VARCF logic output provides instantaneous
reactive or apparent power information.
FUNCTIONAL BLOCK DIAGRAM
PHASE B
AND
PHASE C
DATA
4
AVDD
POWER
SUPPLY
MONITOR
12
REF
IN/OUT
11
AGND
ADC
–
+
9
ICP
10
ICN
PGA1
ADC
–
+
14
V
CP
13
VN
PGA2
ACTIVE/REACTIVE/AP PARENT ENERGIES
AND VOLTAGE/CURRENT RMS CALCUL ATION
FOR PHASE C
(SEE PHASE A FOR DETAILED SIGNAL PATH)
ADC
–
+
7
IBP
8
IBN
PGA1
ADC
–
+
15
V
BP
PGA2
ACTIVE/REACTIVE/AP PARENT ENERGIES
AND VOLTAGE/CURRENT RMS CALCUL ATION
FOR PHASE B
(SEE PHASE A FOR DETAILED SIGNAL PATH)
ADC
–
+
5
IAP
6
IAN
PGA1
ADC
–
+
16
V
AP
PGA2
AVRMSGAIN[11:0]
AVAG[11:0]
|
X
|
APHCAL[6:0]
Φ
HPF
INTEGRATOR
dt
AVARO S[ 11:0] AVARG [11:0]
LPF2
90° PHASE
SHIFTING FILTER
π
2
AWATTO S[11: 0] AWG[11:0]
LPF2
22
DIN
24
DOUT
23
SCLK
21
CS
18
IRQ
ADE7758 REGISTERS AND
SERIAL INTERFACE
WDIV[7:0]
%
VARDI V[7: 0]
%
VADI V[7:0]
%
AIRMSOS[11:0]
X
2
LPF
2.4V
REF
4kΩ
DFC
÷
APCFNUM[ 11:0]
APCFDEN[ 11:0]
ACTIVE POWER
1
APCF
3
DVDD
2
DGND
19
CLKIN
20
CLKOUT
DFC
VARCFNUM[ 11:0]
VARCFDEN[ 11:0]
REACTIVE OR
APPARENT POWER
17
VARCF
ADE7758
AVRMSOS[11:0]
04443-001
÷
Figure 1.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
