Datasheet

ADE7763 Data Sheet
Rev. C | Page 4 of 56
SPECIFICATIONS
AV
DD
= DV
DD
= 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, CLKIN = 3.579545 MHz XTAL, T
MIN
to T
MAX
= –40°C to +85°C.
Table 1. Specifications
1, 2
Parameter
Spec
Unit
Test Conditions/Comments
ENERGY MEASUREMENT ACCURACY
Active Power Measurement Error CLKIN = 3.579545 MHz
Channel 1 Range = 0.5 V Full Scale Channel 2 = 300 mV rms/60 Hz, gain = 2
Gain = 1 0.1 % typ Over a dynamic range 1000 to 1
Gain = 2 0.1 % typ Over a dynamic range 1000 to 1
Gain = 4 0.1 % typ Over a dynamic range 1000 to 1
Gain = 8 0.1 % typ Over a dynamic range 1000 to 1
Channel 1 Range = 0.25 V Full Scale
Gain = 1 0.1 % typ Over a dynamic range 1000 to 1
Gain = 2 0.1 % typ Over a dynamic range 1000 to 1
Gain = 4
0.1
% typ
Over a dynamic range 1000 to 1
Gain = 8 0.2 % typ Over a dynamic range 1000 to 1
Channel 1 Range = 0.125 V Full Scale
Gain = 1 0.1 % typ Over a dynamic range 1000 to 1
Gain = 2 0.1 % typ Over a dynamic range 1000 to 1
Gain = 4 0.2 % typ Over a dynamic range 1000 to 1
Gain = 8 0.2 % typ Over a dynamic range 1000 to 1
Active Power Measurement Bandwidth 14 kHz
Phase Error 1 between Channels
±0.05
max
Line frequency = 45 Hz to 65 Hz, HPF on
AC Power Supply Rejection
1
AVDD = DVDD = 5 V + 175 mV rms/120 Hz
Output Frequency Variation (CF) 0.2 % typ Channel 1 = 20 mV rms, gain = 16, range = 0.5 V
Channel 2 = 300 mV rms/60 Hz, gain = 1
DC Power Supply Rejection
1
AVDD = DVDD = 5 V ± 250 mV dc
Output Frequency Variation (CF) ±0.3 % typ Channel 1 = 20 mV rms/60 Hz, gain = 16, range = 0.5 V
Channel 2 = 300 mV rms/60 Hz, gain = 1
IRMS Measurement Error 0.5 % typ Over a dynamic range 100 to 1
IRMS Measurement Bandwidth 14 kHz
VRMS Measurement Error 0.5 % typ Over a dynamic range 20 to 1
VRMS Measurement Bandwidth 140 Hz
ANALOG INPUTS
3
See the Analog Inputs section
Maximum Signal Levels ±0.5 V max V1P, V1N, V2N, and V2P to AGND
Input Impedance (dc) 390 k min
Bandwidth 14 kHz CLKIN/256, CLKIN = 3.579545 MHz
Gain Error
1, 3
External 2.5 V reference, gain = 1 on Channels 1 and 2
Channel 1
Range = 0.5 V Full Scale ±4 % typ V1 = 0.5 V dc
Range = 0.25 V Full Scale ±4 % typ V1 = 0.25 V dc
Range = 0.125 V Full Scale ±4 % typ V1 = 0.125 V dc
Channel 2 ±4 % typ V2 = 0.5 V dc
Offset Error 1 ±32 mV max Gain 1
Channel 1
±13
mV max
Gain 16
±32 mV max Gain 1
Channel 2 ±13 mV max Gain 16
WAVEFORM SAMPLING Sampling CLKIN/128, 3.579545 MHz/128 = 27.9 kSPS
Channel 1 See the Channel 1 Sampling section
Signal-to-Noise Plus Distortion 62 dB typ 150 mV rms/60 Hz, range = 0.5 V, gain = 2
Bandwidth (–3 dB) 14 kHz CLKIN = 3.579545 MHz
Channel 2 See the Channel 2 Sampling section
Signal-to-Noise Plus Distortion 60 dB typ 150 mV rms/60 Hz, gain = 2
Bandwidth (–3 dB)
140
Hz
CLKIN = 3.579545 MHz