ADE7752A datasheet(9/24 Pages) AD | Polyphase Energy Metering IC with Pulse Output

9 / 24 page

ADE7752/ADE7752A

Rev. C | Page 9 of 24

–5

CH_I PhA OFFSET (mV)

–20

–10

–15

N: 88

MEAN: 4.48045

SD: 3.23101

MIN: –2.47468 MAX: 12.9385

RANGE: 15.4132

FREQUENCY (Hz)

0.5

–0.1

–0.5

0.4

–0.2

–0.4

0.2

0.1

–0.3

0.3

PF = 0.5

PF = 1

WYE CONNECTION

ON-CHIP REFERENCE

Figure 12. Channel 1 Offset Distribution

Figure 10. Error as a Percent of Reading over Frequency

with an Internal Reference (Wye Connection)

100

0.5

–0.1

–0.5

0.1

0.4

–0.2

–0.4

0.2

0.1

–0.3

0.3

CURRENT CHANNEL (% of Full Scale)

WYE CONNECTION

ON-CHIP REFERENCE

5.25V

4.75V

100

0.5

–0.1

–0.5

0.1

0.4

–0.2

–0.4

0.2

0.1

–0.3

0.3

WYE CONNECTION

EXTERNAL REFERENCE

5.25V

4.75V

CURRENT CHANNEL (% of Full Scale)

Figure 13. Error as a Percent of Reading over Power Supply

with Internal Reference (Wye Connection)

Figure 11. Error as a Percent of Reading over Power Supply

with External Reference (Wye Connection)

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