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ADE7763
TABLE OF CONTENTS
Specifications.....................................................................................3
Rev. A | Page 2 of 56
Timing Characteristics.....................................................................5
Absolute Maximum Ratings............................................................6
ESD Caution..................................................................................6
Terminology......................................................................................7
Pin Configuration and Function Descriptions.............................8
Typical Performance Characteristics...........................................10
Theory of Operation......................................................................13
Analog Inputs..............................................................................13
di/dt Current Sensor and Digital Integrator...........................14
Zero-Crossing Detection...........................................................15
Period Measurement..................................................................16
Power Supply Monitor...............................................................16
Line Voltage Sag Detection.......................................................17
Peak Detection............................................................................17
Interrupts.....................................................................................18
Temperature Measurement.......................................................19
Analog-to-Digital Conversion..................................................19
Channel 1 ADC..........................................................................20
Channel 2 ADC..........................................................................22
Phase Compensation..................................................................24
Active Power Calculation..........................................................25
Energy Calculation.....................................................................26
Power Offset Calibration...........................................................28
Energy-to-Frequency Conversion............................................ 28
Line Cycle Energy Accumulation Mode................................. 30
Positive-Only Accumulation Mode......................................... 30
No-Load Threshold.................................................................... 30
Apparent Power Calculation..................................................... 31
Apparent Energy Calculation................................................... 32
Line Apparent Energy Accumulation...................................... 33
Energies Scaling.......................................................................... 34
Calibrating an Energy Meter .................................................... 34
CLKIN Frequency...................................................................... 43
Suspending Functionality.......................................................... 44
Checksum Register..................................................................... 44
Serial Interface............................................................................ 44
Registers........................................................................................... 47
Register Descriptions..................................................................... 50
Communication Register.......................................................... 50
Mode Register (0x09)................................................................. 50
Interrupt Status Register (0x0B), Reset Interrupt Status
Register (0x0C), Interrupt Enable Register (0x0A)............... 52
CH1OS Register (0x0D)............................................................ 53
Outline Dimensions....................................................................... 54
Ordering Guide .......................................................................... 54
REVISION HISTORY
10/04—Data Sheet Changed from Rev. 0 to Rev. A
Changes to Period Measurement Section ..................................16
Changes to Temperature Measurement Section........................19
Change to Energy-to-Frequency Conversion Section..............28
Update to Figure 61.......................................................................29
Change to Apparent Energy Calculation Section.....................32
Change to Description of AEHF and VAEHF Bits...................52
4/04—Revision 0: Initial Version