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ADE9000 数据表(PDF) 18 Page - Analog Devices |
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ADE9000 数据表(HTML) 18 Page - Analog Devices |
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18 / 73 page ![]() Data Sheet ADE9000 Rev. A | Page 17 of 72 RMS LINEARITY OVER TEMPERATURE AND RMS ERROR OVER FREQUENCY RMS linearity obtained with a sinusoidal current and voltage with variable amplitudes from 100% of full scale down to 0.01% of full scale using a frequency of 50 Hz, total rms error over frequency obtained with a sinusoidal current amplitude of 10% of full scale and voltage amplitude of 50% of full scale, and the integrator off. Fundamental rms error over frequency obtained with a sinusoidal current amplitude of 10% of full scale, a voltage amplitude of 50% of full scale, a fifth harmonic with a constant amplitude of 40% of fundamental, and the integrator off, unless otherwise noted. 1.0 0.5 0 –0.5 –1.0 0.01 0.1 1 10 100 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 26. Current RMS Error as a Percentage of Full-Scale Current over Temperature 1.0 0.5 0 –0.5 –1.0 0.1 1 10 100 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 27. ½ Cycle Current RMS Error as a Percentage of Full-Scale Current over Temperature, Data Sourced Before High-Pass Filter and Calibrated for Offset, Register CONFIG0, Bit RMS_SRC_SEL = 1 1.0 0.5 0 –0.5 –1.0 0.1 1 10 100 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 28. 10 Cycle Current RMS/12 Cycle Current Error as a Percentage of Full-Scale Current over Temperature, Data Sourced Before High-Pass Filter and Calibrated for Offset, Register CONFIG0, Bit RMS_SRC_SEL = 1 1.0 0.5 0 –0.5 –1.0 0.0001 0.001 0.01 0.1 1 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 29. Fundamental Current RMS Error as a Percentage of Full-Scale Current over Temperature 5 3 1 –1 –3 –5 0.01 0.1 1 10 100 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 30. ½ Cycle Current RMS Error as a Percentage of Full-Scale Current over Temperature, Data Sourced After High-Pass Filter, Register CONFIG0, Bit RMS_SRC_SEL = 0 1.0 0.5 0 –0.5 –1.0 0.01 0.1 1 10 100 PERCENTAGE OF FULL-SCALE CURRENT (%) TA = +85°C TA = +25°C TA = –40°C Figure 31. 10 Cycle Current RMS/12 Cycle Current Error as a Percentage of Full-Scale Current over Temperature, Data Sourced After High-Pass Filter, Register CONFIG0, Bit RMS_SRC_SEL = 0 |
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