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ADE7761 Fiches technique(PDF) 4 Page - Analog Devices

No de pièce ADE7761
Description  Energy Metering IC with On-Chip Fault and Missing Neutral Detection
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

ADE7761 Fiches technique(HTML) 4 Page - Analog Devices

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ADE7761
Rev. A | Page 4 of 28
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
10
mV, max
Uncalibrated error, see the Terminology section for details
Gain Error
±4
%, 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
4
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
See footnotes on next page.


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