ADE9078 datasheet(18/108 Pages) AD

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Data Sheet

ADE9078

Rev. 0 | Page 17 of 107

TOTAL ENERGY AND RMS LINEARITY WITH INTEGRATOR ON

Sinusoidal voltage with an amplitude of 50% of full scale and a frequency of 50 Hz; gain of current channel set to 4; sinusoidal current

with variable amplitudes from 100% of full scale down to 0.05% or 0.1% of full scale and with a frequency of 50 Hz; full scale at gain of 4 = (full

scale at gain of 1)/4, high-pass corner frequency of 4.97 Hz.

–0.5

–0.3

–0.1

0.1

0.3

0.5

0.01

0.1

100

PERCENTAGE OF FULL-SCALE CURRENT (%)

POWER FACTOR = 1

POWER FACTOR = 0.5

POWER FACTOR = –0.5

Figure 21. Total Active Energy Error, Gain = 4, Integrator On

–0.5

–0.3

–0.1

0.1

0.3

0.5

0.1

100

PERCENTAGE OF FULL-SCALE CURRENT (%)

Figure 22. Total Reactive Energy Error, Gain = 4, Integrator On

–0.5

–0.3

–0.1

0.1

0.3

0.5

0.01

0.1

100

PERCENTAGE OF FULL-SCALE CURRENT (%)

POWER FACTOR = 0

POWER FACTOR = 0.866

POWER FACTOR = –0.866

Figure 23. Total Apparent Energy Error, Gain = 4, Integrator On

–0.5

–0.3

–0.1

0.1

0.3

0.5

0.1

100

PERCENTAGE OF FULL-SCALE CURRENT (%)

Figure 24. Total RMS Current Error, Gain = 4, Integrator On

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