Datasheet ADE7754 (Analog Devices) - 8

ADE7754 1.00 VDD GAIN = 1 0.80 INTERNAL REFERENCE 10 F 100nF 17 PS2501-1 825 I CF 1 0.60 AVDD DVDD RESET 1k IAP 33nF TO FREQ. 0.40 RB ADE7754 COUNTER PF = 1 1k IAN 22pF 0.20 33nF CLKOUT 20 IBP 10MHz SAME AS 0.00 IAP, IAN CLKIN 19 IBN 22pF –0.20 9 ICP DOUT PF = 0.5 SAME AS I PERCENT ERROR AP, IAN 10 SCLK ICN TO SPI BUS –0.40 1M CS 21 ONLY USED FOR 16 VAP CALIBRATION 33nF DIN 22 220V –0.60 1k IRQ 18 SAME AS VAP 15 VBP –0.80 REFIN/OUT 12 SAME AS V V AP 14 CP 100nF 10 F VN AGND DGND –1.00 13 1k 45 50 55 60 65 FREQUENCY (Hz) 33nF
TPC 7. Real Power Error as a Percentage of Read- TPC 10. Test Circuit for Performance Curves ing over Input Frequency with Internal Reference
0.20 24 GAIN = 1 N = 116 0.16 PF = 1 MEAN = 4.33955 21 EXTERNAL REFERENCE SD = 3.13475 0.12 LIMITS: LOW = –19, HIGH = +19 18 MIN = –2.21937 0.08 MAX = +14.7485 RANGE = 16.9669 15 0.04 4.75V 0.00 12 –0.04 9 PERCENT ERROR 5V PERCENT ERROR –0.08 6 –0.12 5.25V 3 –0.16 –0.20 0 0.01 0.1 1 10 100 –20 –15 –10 –5 0 5 10 15 20 CURRENT INPUT (% fs) CH_I PhA OFFSET (mV)
TPC 11. Current Channel Offset Distribution (Gain = 1) TPC 8. Real Power Error as a Percentage of Read- ing over Power Supply with External Reference (Gain = 1)
0.20 GAIN = 1 PF = 1 0.15 INTERNAL REFERENCE 0.10 0.05 4.75V 0.00 5.25V –0.05 PERCENT ERROR 5V –0.10 –0.15 –0.20 0.01 0.1 1 10 100 CURRENT INPUT (% fs)
TPC 9. Real Power Error as a Percentage of Reading over Power Supply with Internal Reference (Gain = 1) –8– REV. 0 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS Typical Performance Characteristics TERMINOLOGY Measurement Error Phase Error Between Channels Power Supply Rejection ADC Offset Error Gain Error Gain Error Match POWER SUPPLY MONITOR ANALOG INPUTS ANALOG-TO-DIGITAL CONVERSION Antialias Filter CURRENT CHANNEL ADC Current Channel ADC Gain Adjust Current Channel Sampling VOLTAGE CHANNEL ADC ZERO-CROSSING DETECTION Zero-Crossing Timeout PERIOD MEASUREMENT LINE VOLTAGE SAG DETECTION SAG Level Set PEAK DETECTION Peak Level Set TEMPERATURE MEASUREMENT PHASE COMPENSATION ROOT MEAN SQUARE MEASUREMENT Current RMS Calculation Current RMS Gain Adjust Current RMS Offset Compensation Voltage RMS Calculation Voltage RMS Gain Adjust Voltage RMS Offset Compensation ACTIVE POWER CALCULATION Power Offset Calibration Reverse Power Information TOTAL ACTIVE POWER CALCULATION ENERGY CALCULATION Integration Times Under Steady Load Energy to Frequency Conversion No Load Threshold Mode Selection of the Sum of the Three Active Energies LINE ENERGY ACCUMULATION REACTIVE POWER CALCULATION TOTAL REACTIVE POWER CALCULATION Reactive Energy Accumulation Selection APPARENT POWER CALCULATION Apparent Power Offset Calibration TOTAL APPARENT POWER CALCULATION APPARENT ENERGY CALCULATION Integration Times under Steady Load LINE APPARENT ENERGY ACCUMULATION ENERGIES SCALING CHECK SUM REGISTER SERIAL INTERFACE Serial Write Operation Serial Read Operation INTERRUPTS Using Interrupts with an MCU Interrupt Timing ACCESSING THE ADE7754 ON-CHIP REGISTERS Communications Register Operational Mode Register (0Ah) Gain Register (18h) CFNUM Register (25h) Measurement Mode Register (0Bh) Waveform Mode Register (0Ch) Watt Mode Register (0Dh) VA Mode Register (0Eh) Interrupt Enable Register (0Fh) Interrupt Status Register (10h)/Reset Interrupt Status Register (11h) OUTLINE DIMENSIONS