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ADE7761AARS-REF Arkusz danych(PDF) 3 Page - Analog Devices

Numer części ADE7761AARS-REF
Szczegółowy opis  Energy Metering IC with On-Chip Fault and Missing Neutral Detection
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Strona internetowa  http://www.analog.com
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ADE7761AARS-REF Arkusz danych(HTML) 3 Page - Analog Devices

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ADE7761A
Rev. 0 | Page 3 of 24
SPECIFICATIONS
VDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, on-chip oscillator, TMIN to TMAX = −40°C to +85°C.
Table 1.
Parameter
Value
Unit
Test Conditions/Comments
ACCURACY1
Measurement Error2
0.1
% of reading, typ
Over a dynamic range of 500 to 1
Phase Error Between Channels
PF = 0.8 Capacitive
±0.05
Degrees, max
Phase lead 37°
PF = 0.5 Inductive
±0.05
Degrees, max
Phase lag 60°
AC Power Supply Rejection2
Output Frequency Variation
0.01
%, typ
V1A = V1B = V2P = ±100 mV rms
DC Power Supply Rejection2
Output Frequency Variation
0.01
%, typ
V1A = V1B = V2P = ±100 mV rms
FAULT DETECTION2, 3
See the Fault Detection section
Fault Detection Threshold
Inactive Input <> Active Input
6.25
%, typ
V1A or V1B active
Input Swap Threshold
Inactive Input <> Active Input
6.25
% of larger, typ
V1A or V1B active
Accuracy Fault Mode Operation
V1A Active, V1B = AGND
0.1
% of reading, typ
Over a dynamic range of 500 to 1
V1B Active, V1A = AGND
0.1
% of reading, typ
Over a dynamic range of 500 to 1
Fault Detection Delay
3
Seconds, typ
Swap Delay
3
Seconds, typ
MISSING NEUTRAL MODE2, 4
See the Missing Neutral Detection section
Missing Neutral Detection Threshold
V2P − V2N
59.4
mV peak, min
Accuracy Missing Neutral Mode
V1A Active, V1B = V2P = AGND
0.1
% of reading, typ
Over a dynamic range of 500 to 1
V1B Active, V1A = V2P = AGND
0.1
% of reading, typ
Over a dynamic range of 500 to 1
Missing Neutral Detection Delay
3
Seconds, typ
ANALOG INPUTS
V1A − V1N, V1B − V1N, V2P − V2N
Maximum Signal Levels
±660
mV peak, max
Differential input
660
mV peak, max
Differential input MISCAL − V2N
Input Impedance (DC)
400
kΩ, min
Bandwidth (−3 dB)
7
kHz, typ
ADC Offset Error2
15
mV, typ
Uncalibrated error, see the Terminology section for details
Gain Error
±4
%, typ
External 2.5 V reference
Gain Error Match2
±3
%, typ
External 2.5 V reference
REFERENCE INPUT
REFIN/OUT Input Voltage Range
2.7
V, max
2.5 V + 8%
2.3
V, min
2.5 V − 8%
Input Impedance
3
kΩ, min
Input Capacitance
10
pF, max
ON-CHIP REFERENCE
Reference Error
±200
mV, max
Temperature Coefficient
30
ppm/°C, typ
Current Source
20
μA, min
ON-CHIP OSCILLATOR
Oscillator Frequency
450
kHz
Oscillator Frequency Tolerance
±12
% of reading, typ
Temperature Coefficient
30
ppm/°C, typ


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