ade7880 Analog Devices, Inc., ade7880 Datasheet - Page 3

• Manufacturer Part Number: ade7880
• Description: Polyphase Multifunction Energy Metering Ic With Harmonic Monitoring
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
TABLE OF CONTENTS
Features ............................................................................................... 1
Applications ....................................................................................... 1
General Description .......................................................................... 1
Revision History ................................................................................ 3
Functional Block Diagram ............................................................... 4
Specifications ..................................................................................... 5
Absolute Maximum Ratings .......................................................... 12
Pin Configuration and Function Descriptions ........................... 13
Typical Performance Characteristics ............................................ 15
Test Circuit ....................................................................................... 16
Terminology ..................................................................................... 17
Power Management ........................................................................ 18
Theory of Operation ....................................................................... 23
REVISION HISTORY
Timing Characteristics ................................................................. 9
Thermal Resistance ..................................................................... 12
ESD Caution ................................................................................ 12
PSM0—Normal Power Mode (All Parts) ................................. 18
PSM1—Reduced Power Mode .................................................. 18
PSM2—Low Power Mode .......................................................... 18
PSM3—Sleep Mode (All Parts) ................................................. 19
Power-Up Procedure .................................................................. 21
Hardware Reset............................................................................ 22
Software Reset Functionality ..................................................... 22
Analog Inputs .............................................................................. 23
Analog-to-Digital Conversion .................................................. 23
Current Channel ADC ............................................................... 24
di/dt CurRent Sensor and Digital Integrator .............................. 26
Voltage Channel ADC ................................................................ 27
Rev. PrE | Page 3 of 103
Silicon anomaly ............................................................................... 78
Registers List .................................................................................... 79
Outline Dimensions ...................................................................... 102
Changing Phase Voltage Datapath ........................................... 28
Power Quality Measurements ................................................... 28
Phase Compensation .................................................................. 34
Reference Circuit......................................................................... 35
Digital Signal Processor ............................................................. 35
Root Mean Square Measurement ............................................. 36
Active Power Calculation ........................................................... 40
Fundamental Reactive Power Calculation ............................... 46
Apparent Power Calculation ..................................................... 49
Power Factor calculation ............................................................ 52
Harmonics calculations .............................................................. 53
Waveform Sampling Mode ........................................................ 61
Energy-to-Frequency Conversion ............................................ 62
No Load Condition ..................................................................... 66
Checksum Register ..................................................................... 67
Interrupts ..................................................................................... 68
Serial Interfaces ........................................................................... 69
ADE7880 quick setup as energy meter .................................... 76
ADE7880 Evaluation Board ...................................................... 77
Die Version .................................................................................. 77
ADE7880 Functionality Issues .................................................. 78
Functionality Issues .................................................................... 78
Ordering Guide ......................................................................... 102
ADE7880