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參數(shù)資料
| 型號： | ADE7878ACPZ-RL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Poly Phase Multifunction Energy Metering IC With Total And Fundamental Powers, No Of Pins: 40, Temperature Range: Ind |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC40 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, MO-220WJJD, LFCSP-40 |
| 文件頁數(shù)： | 89/96頁 |
| 文件大?。?/td> | 1096K |
| 代理商： | ADE7878ACPZ-RL |
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ADE7854/ADE7858/ADE7868/ADE7878
Rev. E | Page 9 of 96
Min
Typ
Max
Unit
Test Conditions/Comments
DC Power Supply Rejection
VDD = 3.3 V ± 330 mV dc
Output Frequency Variation
0.01
%
Total Reactive Energy Measurement
Bandwidth
2
kHz
RMS MEASUREMENTS
I rms and V rms Measurement
Bandwidth
2
kHz
I rms and V rms Measurement Error
(PSM0 Mode)
0.1
%
Over a dynamic range of 1000 to 1, PGA = 1
MEAN ABSOLUTE VALUE (MAV)
MEASUREMENT (ADE7868 AND ADE7878)
I mav Measurement Bandwidth (PSM1
Mode)
260
Hz
I mav Measurement Error (PSM1 Mode)
0.5
%
Over a dynamic range of 100 to 1, PGA = 1, 2, 4, 8
ANALOG INPUTS
Maximum Signal Levels
±500
mV peak
Differential inputs between the following pins:
IAP and IAN, IBP and IBN, ICP and ICN; single-
ended inputs between the following pins: VAP
and VN, VBP and VN, VCP and VN
Input Impedance (DC)
IAP, IAN, IBP, IBN, ICP, ICN, VAP, VBP,
and VCP Pins
400
kΩ
VN Pin
130
kΩ
ADC Offset Error
±2
mV
PGA = 1, uncalibrated error, see the Terminology
section
Gain Error
±4
%
External 1.2 V reference
WAVEFORM SAMPLING
Sampling CLKIN/2048, 16.384 MHz/2048 = 8 kSPS
Current and Voltage Channels
See the Waveform Sampling Mode section
Signal-to-Noise Ratio, SNR
70
dB
PGA = 1
Signal-to-Noise-and-Distortion Ratio,
SINAD
60
dB
PGA = 1
Bandwidth (3 dB)
2
kHz
TIME INTERVAL BETWEEN PHASES
Measurement Error
0.3
Degrees
Line frequency = 45 Hz to 65 Hz, HPF on
CF1, CF2, CF3 PULSE OUTPUTS
Maximum Output Frequency
8
kHz
WTHR = VARTHR = VATHR = PMAX = 33,516,139
Duty Cycle
50
%
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is even and > 1
(1 + 1/CFDEN)
× 50%
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is odd and > 1
Active Low Pulse Width
80
ms
If CF1, CF2, or CF3 frequency < 6.25 Hz
Jitter
0.04
%
For CF1, CF2, or CF3 frequency = 1 Hz and
nominal phase currents are larger than 10% of
full scale
REFERENCE INPUT
REFIN/OUT Input Voltage Range
1.1
1.3
V
Minimum = 1.2 V 8%; maximum = 1.2 V + 8%
Input Capacitance
10
pF
ON-CHIP REFERENCE
Nominal 1.207 V at the REFIN/OUT pin at TA = 25°C
PSM0 and PSM1 Modes
Reference Error
±2
mV
Output Impedance
1.2
kΩ
Temperature Coefficient
10
50
ppm/°C
Maximum value across full temperature range
of 40°C to +85°C
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