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ADE7763

Rev. A | Page 2 of 56

TABLE OF CONTENTS

Specifications..................................................................................... 3

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

Communication Register .......................................................... 50

Mode Register (0x09)................................................................. 50

Interrupt Status Register (0x0B), Reset Interrupt Status

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

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