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ADE7761B
TABLE OF CONTENTS
Features .............................................................................................. 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 4
Absolute Maximum Ratings............................................................ 5
Performance Issues That May Affect Billing Accuracy........... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 8
Test Circuit ........................................................................................ 9
Terminology .................................................................................... 10
Theory of Operation ...................................................................... 11
Analog Inputs ............................................................................. 11
Internal Oscillator ...................................................................... 12
Analog-to-Digital Conversion.................................................. 13
Active Power Calculation .......................................................... 14
Digital-to-Frequency Conversion ............................................ 16
Transfer Function....................................................................... 16
Fault Detection ........................................................................... 17
Missing Neutral Mode ............................................................... 18
Applications Information .............................................................. 21
Interfacing to a Microcontroller for Energy Measurement .. 21
Selecting a Frequency for an Energy Meter Application ...... 21
Negative Power Information..................................................... 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Power Supply Monitor ............................................................... 11
REVISION HISTORY
8/07—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
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