ADE7752AAR Datasheet, PDF (9/24 Pages) Analog Devices – Polyphase Energy Metering IC with Pulse Output

0.5
WYE CONNECTION
0.4
ON-CHIP REFERENCE
0.3
PF = 1
0.2
0.1
0
PF = 0.5
–0.1
–0.2
–0.3
–0.4
–0.5
45
50
55
60
65
FREQUENCY (Hz)
Figure 10. Error as a Percent of Reading over Frequency
with an Internal Reference (Wye Connection)
0.5
WYE CONNECTION
0.4 ^{EXTERNAL REFERENCE}
0.3
4.75V
0.2
5V
0.1
0
5.25V
–0.1
–0.2
–0.3
–0.4
–0.5
0.1
1
10
100
CURRENT CHANNEL (% of Full Scale)
Figure 11. Error as a Percent of Reading over Power Supply
with External Reference (Wye Connection)
ADE7752/ADE7752A
N: 88
18 MEAN: 4.48045
SD: 3.23101
MIN: –2.47468 MAX: 12.9385
15 RANGE: 15.4132
12
9
6
3
0
–20 –15 –10 –5
0
5
10
15
20
CH_I PhA OFFSET (mV)
Figure 12. Channel 1 Offset Distribution
0.5
WYE CONNECTION
0.4 ^{ON-CHIP REFERENCE}
0.3
4.75V
0.2
5V
0.1
0
–0.1
5.25V
–0.2
–0.3
–0.4
–0.5
0.1
1
10
100
CURRENT CHANNEL (% of Full Scale)
Figure 13. Error as a Percent of Reading over Power Supply
with Internal Reference (Wye Connection)
Rev. C | Page 9 of 24