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ADE7913 PDF 데이터시트 ( Data , Function )

부품번호 ADE7913 기능
기능 Sigma-Delta ADC
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ADE7913 데이터시트, 핀배열, 회로
Data Sheet
FEATURES
Two (ADE7912) or three (ADE7913) 24-bit isolated, Σ-Δ
analog-to-digital converters (simultaneously sampling
ADCs)
Integrated isoPower, isolated dc-to-dc converter
On-chip temperature sensor
4-wire SPI serial interface
Up to 4 ADE7912/ADE7913 devices clocked from a single
crystal or an external clock
Synchronization of multiple ADE7912/ADE7913 devices
±31.25 mV peak input range for current channel
±500 mV peak input range for voltage channels
Reference drift: 10 ppm/°C typical
Single 3.3 V supply
20-lead, wide-body SOIC package with 8.3 mm creepage
Operating temperature: −40°C to +85°C
Safety and regulatory approvals (pending)
UL recognition
5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
IEC 61010-1: 400 V rms
VDE certificate of conformity
DIN VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 846 V peak
APPLICATIONS
Shunt-based polyphase meters
Power quality monitoring
Solar inverters
Process monitoring
Protective devices
Isolated sensor interfaces
Industrial PLCs
GENERAL DESCRIPTION
The ADE7912/ADE79131 are isolated, 3-channel Σ-Δ ADCs for
polyphase energy metering applications using shunt current
sensors. Data and power isolation are based on the Analog Devices,
Inc., iCoupler® technology. The ADE7912 features two 24-bit
ADCs, and the ADE7913 features three ADCs. The current ADC
provides a 67 dB signal-to-noise ratio over a 3 kHz signal
bandwidth, whereas the voltage ADCs provide a SNR of 72 dB over
the same bandwidth. One channel is dedicated to measuring the
3-Channel, Isolated,
Sigma-Delta ADC with SPI
ADE7912/ADE7913
TYPICAL APPLICATIONS CIRCUIT
PHASE PHASE PHASE
NEUTRAL
A
B
C
ISOLATION
BARRIER
LOAD
EARTH
V1P
VM
IM PHASE A
ADE7912/
IP ADE7913
V2P
3.3V
GNDISO_A
GNDMCU
V1P
VM
IM PHASE B
ADE7912/
IP ADE7913
V2P
3.3V
GNDISO_B
GNDMCU
V1P
VM
IM PHASE C
ADE7912/
IP ADE7913
V2P
3.3V
GNDISO_C
GNDMCU
V1P
VM NEUTRAL
IM
LINE
ADE7912/
ADE7913
IP (OPTIONAL)
V2P
3.3V
GNDISO_N
GNDMCU
Figure 1.
3.3V
GNDMCU
voltage across a shunt when the shunt is used for current sensing.
Up to two additional channels are dedicated to measuring
voltages, which are usually sensed using resistor dividers. One
voltage channel can be used to measure the temperature of the die
via an internal sensor. The ADE7913 includes three channels:
one current and two voltage channels. The ADE7912 has one
voltage channel but is otherwise identical to the ADE7913.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,329; 6,262,600; 7,489,526; 7,558,080. Other patents are pending.
Rev. 0
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




ADE7913 pdf, 반도체, 판매, 대치품
ADE7912/ADE7913
FUNCTIONAL BLOCK DIAGRAMS
VDDISO
GNDISO
1
2
LDO 8
LDO
ISOLATION
BARRIER
ADE7912
POWER
ISOLATION
3
V2P
VM
V1P
IM
IP
REF
5
4
6
7
9
10
GNDISO
TEMP
SENSOR
ADC
ADC
ADC
DATA
DATA
CLOCK
DATA
ISOLATION
CLOCK
DIGITAL
BLOCK
AND
SPI PORT
VREF
Figure 2. ADE7912 Functional Block Diagram
19 VDD
20 GND
18 CS
17 SCLK
16
MOSI
15 MISO
14 XTAL2
13 XTAL1
12 CLKOUT/
11
DREADY
GND
VDDISO
GNDISO
1
2
LDO 8
3
V2P
5
VM
V1P
IM
IP
REF
4
6
7
9
10
GNDISO
ISOLATION
BARRIER
ADE7913
LDO
TEMP
SENSOR
ADC
ADC
ADC
VREF
POWER
ISOLATION
DATA
DATA
CLOCK
DATA
ISOLATION
CLOCK
DIGITAL
BLOCK
AND
SPI PORT
Figure 3. ADE7913 Functional Block Diagram
19 VDD
20 GND
18 CS
17 SCLK
16 MOSI
15 MISO
14 XTAL2
13 XTAL1
12 CLKOUT/
11
DREADY
GND
Data Sheet
Rev. 0 | Page 4 of 44

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ADE7913 전자부품, 판매, 대치품
Data Sheet
ADE7912/ADE7913
REGULATORY APPROVALS (PENDING)
The ADE7912/ADE7913 are pending approval by the organizations listed in Table 2. Refer to Table 8 and the Insulation Lifetime section
for more information about the recommended maximum working voltages for specific cross-isolation waveforms and insulation levels.
Table 2. Regulatory Approvals
UL
Recognized Under UL 1577
Component Recognition Program1
Single Protection, 5000 V rms Isolation
Voltage
CSA
Approved under CSA Component Acceptance
Notice 5A
Basic insulation per IEC 61010-1, 400 V rms (564 V
peak) maximum working voltage
VDE
Certified according to DIN VDE V 0884-102
(VDE V 0884-10):2006-12
Reinforced insulation, 846 V peak
1 In accordance with UL 1577, each ADE7912/ADE7913 is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit
= 10 µA).
2 In accordance with DIN V VDE V 0884-10, each ADE7912/ADE7913 is proof tested by applying an insulation test voltage ≥ 1590 V peak for 1 second (partial discharge
detection limit = 5 pC). The asterisk (*) marking branded on the component designates DIN VDE V 0884-10 (VDE V 0884-10):2006-12 approval.
INSULATION AND SAFETY RELATED SPECIFICATIONS
Table 3. Critical Safety Related Dimensions and Material Properties
Parameter
Symbol Value
Rated Dielectric Insulation Voltage
5000
Minimum External Air Gap (Clearance)
L(l01) 8.3
Unit
V rms
mm
Minimum External Tracking (Creepage)
L(l02)
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
8.3 mm
0.017 min
>600
II
mm
V
Test Conditions/Comments
1-minute duration
Distance measured from input terminals to output
terminals, shortest distance through air along the
PCB mounting plane, as an aid to PCB layout
Measured from input terminals to output terminals,
shortest distance path along body
Insulation distance through insulation
IEC 60112
Material group (DIN VDE 0110, 1/89, Table 1)
DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS
The ADE7912/ADE7913 are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is
ensured by the protective circuits.
Table 4. VDE Characteristics
Description
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 400 V rms
Climatic Classification
Pollution Degree per DIN VDE 0110, Table 1
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method B1
Input-to-Output Test Voltage, Method A
After Environmental Tests Subgroup 1
After Input and/or Safety Tests Subgroup 2
and Subgroup 3
Highest Allowable Overvoltage
Surge Isolation Voltage
Safety Limiting Values
Maximum Junction Temperature
Total Power Dissipation at 25°C
Insulation Resistance at TS
Test Conditions/Comments
Symbol Characteristic Unit
VIORM × 1.875 = Vpd(m), 100% production test, tini =
tm = 1 sec, partial discharge < 5 pC
VIORM × 1.5 = Vpd(m), tini = 60 sec, tm = 10 sec, partial
discharge < 5 pC
VIORM × 1.2 = Vpd(m), tini = 60 sec, tm = 10 sec, partial
discharge < 5 pC
VPEAK = 10 kV, 1.2 µs rise time, 50 µs, 50% fall time
Maximum value allowed in the event of a failure
(see Figure 4)
VIO = 500 V
VIORM
Vpd(m)
Vpd(m)
VIOTM
VIOSM
TS
PS
RS
I to IV
I to IV
I to III
40/105/21
2
846
1592
1273
1018
6000
6000
150
2.78
>109
V peak
V peak
V peak
V peak
V peak
V peak
°C
W
Ω
Rev. 0 | Page 7 of 44

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