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ADE7757–SPECIFICATIONS (V 0.5% = 5 V 50 ppm/ 5%, C, T AGND = to T DGND = –40 0 = V, C to +85 Reference, otherwise noted.) k ,
DD On-Chip RCLKIN = 6.2
MIN MAX C, unless
Parameter
ACCURACY
1, 2
Value
Unit
Test Conditions/Comments
Measurement Error 1 on Channel V1
Channel V2 with Full-Scale Signal ( ± 165 mV), 25 ° C
Phase Error 1 between Channels
0.1
% Reading typ
Over a Dynamic Range 500 to 1
Line Frequency = 45 Hz to 65 Hz
V1 Phase Lead 37 °
(PF = 0.8 Capacitive)
V1 Phase Lag 60 °
(PF = 0.5 Inductive)
AC Power Supply Rejection 1
Output Frequency Variation (CF)
± 0.1
± 0.1
0.2
Degrees ( ° ) max
Degrees ( ° ) max
% Reading typ
S0 = S1 = 1,
V1 = 21.2 mV rms, V2 = 116.7 mV rms @ 50 Hz
Ripple on V DD of 200 mV rms @ 100 Hz
DC Power Supply Rejection 1
S0 = S1 = 1,
Output Frequency Variation (CF)
ANALOG INPUTS
Channel V1 Maximum Signal Level
Channel V2 Maximum Signal Level
Input Impedance (DC)
Bandwidth (–3 dB)
ADC Offset Error 1, 2
Gain Error 1
± 0.3
± 30
± 165
320
7
± 18
± 4
% Reading typ
mV max
mV max
k ? min
kHz nominal
mV max
% Ideal typ
V1 = 21.2 mV rms, V2 = 116.7 mV rms,
V DD = 5 V ± 250 mV
See Analog Inputs section
V1P and V1N to AGND
V2P and V2N to AGND
OSC = 450 kHz, RCLKIN = 6.2 k ? , 0.5% ± 5 0 ppm/ ° C
OSC = 450 kHz, RCLKIN = 6.2 k ? , 0.5% ± 50 ppm/ ° C
See Terminology Section and Typical Performance Characteristics
External 2.5 V Reference
V1 = 21.2 mV rms, V2 = 116.7 mV rms
OSCILLATOR FREQUENCY (OSC)
Oscillator Frequency Tolerance 1
Oscillator Frequency Stability 1
450
± 12
± 30
kHz nominal
% Reading typ
ppm/ ° C typ
RCLKIN = 6.2 k ? , 0.5% ± 50 ppm/ ° C
REFERENCE INPUT
REF IN/OUT Input Voltage Range
Input Capacitance
ON-CHIP REFERENCE
Reference Error
Temperature Coefficient
2.7
2.3
10
± 200
± 20
V max
V min
pF max
mV max
ppm/ ° C typ
2.5 V + 8%
2.5 V – 8%
Nominal 2.5 V
LOGIC INPUTS 3
SCF, S0, S1,
Input High Voltage, V INH
Input Low Voltage, V INL
Input Current, I IN
Input Capacitance, C IN
2.4
0.8
± 1
10
V min
V max
μ A max
pF max
V DD = 5 V ± 5%
V DD = 5 V ± 5%
Typically 10 nA, V IN = 0 V to V DD
LOGIC OUTPUTS 3
F1 and F2
Output High Voltage, V OH
I SOURCE = 10 mA
Output Low Voltage, V OL
CF
Output High Voltage, V OH
Output Low Voltage, VOL
4.5
0.5
4
V min
V max
V min
V DD = 5 V
I SINK = 10 mA
V DD = 5 V
I SOURCE = 5 mA
V DD = 5 V
I SINK = 5 mA
Frequency Output Error 1, 2 (CF)
0.5
± 10
V max
% Ideal typ
V DD = 5 V
External 2.5 V Reference,
V1 = 21.2 mV rms, V2 = 116.7 mV rms
POWER SUPPLY
For Specified Performance
V DD
I DD
4.75
5.25
5
V min
V max
mA max
5 V – 5%
5 V + 5%
Typically 4 mA
NOTES
1
2
3
See Terminology section for explanation of specifications.
See plots in Typical Performance Characteristics.
Sample tested during initial release and after any redesign or process change that may affect this parameter.
Specifications subject to change without notice.
–2 –
REV. A
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