Datasheet ADE7759 (Analog Devices) - 10

ADE7759 0.5 0.5 FULL SCALE = 0.5V 0.4 0.4 +85 C, PF = 0.5 GAIN = 4 INTEGRATOR OFF 0.3 0.3 EXTERNAL REFERENCE –40 C, PF = 1 0.2 0.2 +25 C, PF = 1 +25 C, PF = 1 0.1 0.1 0.0 0.0 –40 C, PF = 0.5 ERROR – % –0.1 ERROR – % –0.1 –0.2 +85 C, PF = 1 –0.2 +25 C, PF = 0.5 FULL SCALE = 0.5V –0.3 –0.3 GAIN = 4 INTEGRATOR OFF –0.4 –0.4 EXTERNAL REFERENCE –0.5 –0.5 0.01 0.1 1 10 100 0.01 0.1 1 10 100 CURRENT – A CURRENT – A
TPC 7. Error as a % of Reading TPC 10. Error as a % of Reading
0.5 1.5 FULL SCALE = 0.5V 0.4 1.3 GAIN = 4 INTEGRATOR ON 0.3 1.1 INTERNAL REFERENCE 0.2 –40 C, PF = 1 0.9 +25 C, PF = 1 0.1 0.7 –40 C, PF = 0.5 0.0 0.5 +85 C, PF = 0.5 ERROR – % –0.1 ERROR – % 0.3 +25 C, PF = 1 +85 C, PF = 1 –0.2 0.1 FULL SCALE = 0.5V –0.3 –0.1 GAIN = 4 INTEGRATOR ON +25 C, PF = 0.5 –0.4 –0.3 INTERNAL REFERENCE –0.5 –0.5 0.01 0.1 1 10 100 0.01 0.1 1 10 100 CURRENT – A CURRENT – A
TPC 8. Error as a % of Reading TPC 11. Error as a % of Reading
0.5 1.5 FULL SCALE = 0.5V FULL SCALE = 0.5V 0.4 GAIN = 4 1.3 GAIN = 4 INTEGRATOR ON INTEGRATOR ON 0.3 EXTERNAL REFERENCE 1.1 EXTERNAL REFERENCE –40 C, PF = 1 0.2 0.9 +85 C, PF = 0.5 0.1 +25 C, PF = 1 0.7 0.0 0.5 –40 C, PF = 0.5 ERROR – % –0.1 ERROR – % 0.3 –0.2 +25 C, PF = 1 0.1 +85 C, PF = 1 –0.3 –0.1 –0.4 –0.3 +25 C, PF = 0.5 –0.5 –0.5 0.01 0.1 1 10 100 0.01 0.1 1 10 100 CURRENT – A CURRENT – A
TPC 9. Error as a % of Reading TPC 12. Error as a % of Reading –10– REV. A Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS TERMINOLOGY MEASUREMENT ERROR PHASE ERROR BETWEEN CHANNELS POWER SUPPLY REJECTION ADC OFFSET ERROR GAIN ERROR GAIN ERROR MATCH Typical Performance Characteristics Test Circuits ANALOG INPUTS di/dt CURRENT SENSOR AND DIGITAL INTEGRATOR ZERO CROSSING DETECTION LINE VOLTAGE SAG DETECTION Sag Level Set POWER SUPPLY MONITOR INTERRUPTS Using the ADE7759 Interrupts with an MCU Interrupt Timing TEMPERATURE MEASUREMENT ANALOG-TO-DIGITAL CONVERSION Antialias Filter ADC Transfer Function Reference Circuit CHANNEL 1 ADC Channel 1 ADC Gain Adjust Channel 1 Sampling CHANNEL 1 AND CHANNEL 2 WAVEFORM SAMPLING MODE CHANNEL 2 ADC Channel 2 Sampling PHASE COMPENSATION ACTIVE POWER CALCULATION ENERGY CALCULATION Integration Time under Steady Load POWER OFFSET CALIBRATION ENERGY-TO-FREQUENCY CONVERSION LINE CYCLE ENERGY ACCUMULATION MODE CALIBRATING THE ENERGY METER Calculating the Average Active Power Calibrating the Frequency at CF Energy Meter Display CLKIN FREQUENCY SUSPENDING THE ADE7759 FUNCTIONALITY APPLICATION INFORMATION SERIAL INTERFACE Serial Write Operation Serial Read Operation CHECKSUM REGISTER REGISTER DESCRIPTIONS Communications Register Mode Register (06H) Interrupt Status Register (04H) Reset Interrupt Status Register (05H) CH1OS Register (08H) OUTLINE DIMENSIONS Revision History