Datasheet ADE7759 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Active Energy Metering IC with di/dt Sensor Interface |
| Seiten / Seite | 36 / 2 — ADE7759. TABLE OF CONTENTS |
| Revision | A |
| Dateiformat / Größe | PDF / 472 Kb |
| Dokumentensprache | Englisch |
ADE7759. TABLE OF CONTENTS
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ADE7759 TABLE OF CONTENTS
FEATURES . 1 CHANNEL 1 ADC . 17 GENERAL DESCRIPTION . 1 Channel 1 ADC Gain Adjust . 18 FUNCTIONAL BLOCK DIAGRAM . 1 Channel 1 Sampling . 18 SPECIFICATIONS . 3 CHANNEL 1 AND CHANNEL 2 WAVEFORM TIMING CHARACTERISTICS . 5 SAMPLING MODE . 18 ABSOLUTE MAXIMUM RATINGS . 6 CHANNEL 2 ADC . 19 ORDERING GUIDE . 6 Channel 2 Sampling . 19 PIN CONFIGURATION . 7 PHASE COMPENSATION . 19 PIN FUNCTION DESCRIPTIONS . 7 ACTIVE POWER CALCULATION . 20 TERMINOLOGY . 8 ENERGY CALCULATION . 21 MEASUREMENT ERROR . 8 Integration Time under Steady Load . 22 PHASE ERROR BETWEEN CHANNELS . 8 POWER OFFSET CALIBRATION . 22 POWER SUPPLY REJECTION . 8 ENERGY-TO-FREQUENCY CONVERSION . 22 ADC OFFSET ERROR . 8 LINE CYCLE ENERGY ACCUMULATION MODE . 24 GAIN ERROR . 8 CALIBRATING THE ENERGY METER . 24 GAIN ERROR MATCH . 8 Calculating the Average Active Power . 24 TYPICAL PERFORMANCE CHARACTERISTICS (TPC) . 9 Calibrating the Frequency at CF . 25 TEST CIRCUITS . 11 Energy Meter Display . 25 ANALOG INPUTS . 11 CLKIN FREQUENCY . 25 di/dt CURRENT SENSOR AND DIGITAL SUSPENDING THE ADE7759 FUNCTIONALITY . 26 INTEGRATOR . 12 APPLICATION INFORMATION . 26 ZERO CROSSING DETECTION . 13 SERIAL INTERFACE . 26 LINE VOLTAGE SAG DETECTION . 14 Serial Write Operation . 26 Sag Level Set . 14 Serial Read Operation . 27 POWER SUPPLY MONITOR . 14 CHECKSUM REGISTER . 28 INTERRUPTS . 15 REGISTER DESCRIPTIONS . 30 Using the ADE7759 Interrupts with an MCU . 15 Communications Register . 30 Interrupt Timing . 15 Mode Register (06H) . 31 TEMPERATURE MEASUREMENT . 16 Interrupt Status Register (04H) . 32 ANALOG-TO-DIGITAL CONVERSION . 16 Reset Interrupt Status Register (05H) . 32 Antialias Filter . 16 CH1OS Register (08H) . 33 ADC Transfer Function . 17 OUTLINE DIMENSIONS . 34 Reference Circuit . 17 REVISION HISTORY . 35 –2– 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
ADE7759 TABLE OF CONTENTS
FEATURES . 1 CHANNEL 1 ADC . 17 GENERAL DESCRIPTION . 1 Channel 1 ADC Gain Adjust . 18 FUNCTIONAL BLOCK DIAGRAM . 1 Channel 1 Sampling . 18 SPECIFICATIONS . 3 CHANNEL 1 AND CHANNEL 2 WAVEFORM TIMING CHARACTERISTICS . 5 SAMPLING MODE . 18 ABSOLUTE MAXIMUM RATINGS . 6 CHANNEL 2 ADC . 19 ORDERING GUIDE . 6 Channel 2 Sampling . 19 PIN CONFIGURATION . 7 PHASE COMPENSATION . 19 PIN FUNCTION DESCRIPTIONS . 7 ACTIVE POWER CALCULATION . 20 TERMINOLOGY . 8 ENERGY CALCULATION . 21 MEASUREMENT ERROR . 8 Integration Time under Steady Load . 22 PHASE ERROR BETWEEN CHANNELS . 8 POWER OFFSET CALIBRATION . 22 POWER SUPPLY REJECTION . 8 ENERGY-TO-FREQUENCY CONVERSION . 22 ADC OFFSET ERROR . 8 LINE CYCLE ENERGY ACCUMULATION MODE . 24 GAIN ERROR . 8 CALIBRATING THE ENERGY METER . 24 GAIN ERROR MATCH . 8 Calculating the Average Active Power . 24 TYPICAL PERFORMANCE CHARACTERISTICS (TPC) . 9 Calibrating the Frequency at CF . 25 TEST CIRCUITS . 11 Energy Meter Display . 25 ANALOG INPUTS . 11 CLKIN FREQUENCY . 25 di/dt CURRENT SENSOR AND DIGITAL SUSPENDING THE ADE7759 FUNCTIONALITY . 26 INTEGRATOR . 12 APPLICATION INFORMATION . 26 ZERO CROSSING DETECTION . 13 SERIAL INTERFACE . 26 LINE VOLTAGE SAG DETECTION . 14 Serial Write Operation . 26 Sag Level Set . 14 Serial Read Operation . 27 POWER SUPPLY MONITOR . 14 CHECKSUM REGISTER . 28 INTERRUPTS . 15 REGISTER DESCRIPTIONS . 30 Using the ADE7759 Interrupts with an MCU . 15 Communications Register . 30 Interrupt Timing . 15 Mode Register (06H) . 31 TEMPERATURE MEASUREMENT . 16 Interrupt Status Register (04H) . 32 ANALOG-TO-DIGITAL CONVERSION . 16 Reset Interrupt Status Register (05H) . 32 Antialias Filter . 16 CH1OS Register (08H) . 33 ADC Transfer Function . 17 OUTLINE DIMENSIONS . 34 Reference Circuit . 17 REVISION HISTORY . 35 –2– 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