ADE7761B
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 1000 to 1
Phase Error Between Channels
PF = 0.8 Capacitive
PF = 0.ꢀ Inductive
0.0ꢀ
0.0ꢀ
Degrees, max
Degrees, max
Phase lead 37°
Phase lag 60°
AC Power Supply Rejection2
Output Frequency Variation
DC Power Supply Rejection2
Output Frequency Variation
FAULT DETECTION2, 3
0.01
0.01
%, typ
%, typ
V1A = V1B = V2P
=
100 mV rms
100 mV rms
V1A = V1B = V2P
=
See the Fault Detection section
Fault Detection Threshold
Inactive Input ≠ Active Input
Input Swap Threshold
Inactive Input ≠ Active Input
Accuracy Fault Mode Operation
V1A Active, V1B = AGND
V1B Active, V1A = AGND
Fault Detection Delay
6.2ꢀ
6.2ꢀ
%, typ
V1A or V1B active
% of larger, typ
V1A or V1B active
0.1
0.1
3
% of reading, typ
% of reading, typ
Seconds, typ
Over a dynamic range of 1000 to 1
Over a dynamic range of 1000 to 1
Swap Delay
3
Seconds, typ
MISSING NEUTRAL MODE2, 4
Missing Neutral Detection Threshold
V2P − V2N
See the Missing Neutral Detection section
ꢀ9.4
mV peak, min
Accuracy Missing Neutral Mode
V1A Active, V1B = V2P = AGND
V1B Active, V1A = V2P = AGND
Missing Neutral Detection Delay
ANALOG INPUTS
0.1
0.1
3
% of reading, typ
% of reading, typ
Seconds, typ
Over a dynamic range of ꢀ00 to 1
Over a dynamic range of ꢀ00 to 1
V1A − V1N, V1B − V1N, V2P − V2N
Differential input
Differential input MISCAL − V2N
Maximum Signal Levels
660
660
790
7
1ꢀ
4
mV peak, max
mV peak, max
kΩ, min
kHz, typ
mV, typ
Input Impedance (DC)
Bandwidth (−3 dB)
ADC Offset Error2
Uncalibrated error, see the Terminology section for details
External 2.ꢀ V reference
Gain Error
%, typ
Gain Error Match2
REFERENCE INPUT
REFIN/OUT Input Voltage Range
3
%, typ
External 2.ꢀ V reference
2.7
2.3
3
V, max
V, min
kΩ, min
pF, max
2.ꢀ V + 8%
2.ꢀ V − 8%
Input Impedance
Input Capacitance
10
ON-CHIP REFERENCE
Reference Error
Temperature Coefficient
Current Source
200
30
10
mV, max
ppm/°C, typ
μA, max
Specification assures that VREF is within 8%
ON-CHIP OSCILLATOR
Oscillator Frequency
Oscillator Frequency Tolerance
Temperature Coefficient
4ꢀ0
12
30
kHz
% of reading, typ
ppm/°C, typ
Specification achieved with 2ꢀ ppm/°C max resistor on the
RCLKIN pin
Rev. 0 | Page 3 of 24
ADI [ ADI ]
