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ADE7903 데이터시트(PDF) 2 Page - Analog Devices

부품명 ADE7903
상세설명  3-Channel, Sigma-Delta ADC with SPI
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제조업체  AD [Analog Devices]
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ADE7903 데이터시트(HTML) 2 Page - Analog Devices

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ADE7903
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Typical Application Circuit ............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagram .............................................................. 3
Specifications..................................................................................... 4
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ............................................. 9
Test Circuit ...................................................................................... 11
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 14
Analog Inputs.............................................................................. 14
Analog-to-Digital Conversion.................................................. 14
Reference Circuit........................................................................ 16
CRC of ADC Output Values ..................................................... 16
Temperature Sensor ................................................................... 16
Protecting the Integrity of Configuration Registers.............. 17
CRC of Configuration Registers............................................... 17
ADE7903 Status.......................................................................... 17
Applications Information .............................................................. 18
ADE7903 in Polyphase Energy Meters ................................... 18
ADE7903 in Single-Phase Energy Meters............................... 19
ADE7903 Clock.......................................................................... 20
SPI-Compatible Interface.......................................................... 20
Synchronizing Multiple ADE7912/ADE7913 and
ADE7903 Devices....................................................................... 22
Power Management........................................................................ 23
Power-Up and Initialization Procedures................................. 23
Hardware Reset........................................................................... 24
Software Reset............................................................................. 24
Power-Down Mode.................................................................... 24
Layout Guidelines........................................................................... 25
ADE7903 Evaluation Board...................................................... 25
ADE7903 Version....................................................................... 25
Register List..................................................................................... 26
Outline Dimensions....................................................................... 28
Ordering Guide .......................................................................... 28
REVISION HISTORY
12/14—Revision 0: Initial Version
Rev. 0 | Page 2 of 28


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