Analog Devices AD9627 Evaluation Board AD9627-125EBZ AD9627-125EBZ 数据表

产品代码

AD9627-125EBZ

AD9627

Rev. B | Page 2 of 76

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

Functional Block Diagram .............................................................. 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 3

General Description ......................................................................... 4

Specifications ..................................................................................... 5

ADC DC Specifications—AD9627-80/AD9627-105 .................. 5

ADC DC Specifications—AD9627-125/AD9627-150 ................ 6

ADC AC Specifications—AD9627-80/AD9627-105 ................... 7

ADC AC Specifications—AD9627-125/AD9627-150 ................. 8

Digital Specifications ................................................................... 9

Switching Specifications—AD9627-80/AD9627-105 ................ 11

Switching Specifications—AD9627-125/AD9627-150 .............. 12

Timing Specifications ................................................................ 13

Absolute Maximum Ratings .......................................................... 15

Thermal Characteristics ............................................................ 15

ESD Caution ................................................................................ 15

Pin Configurations and Function Descriptions ......................... 16

Equivalent Circuits ......................................................................... 20

Typical Performance Characteristics ........................................... 21

Theory of Operation ...................................................................... 26

ADC Architecture ...................................................................... 26

Analog Input Considerations .................................................... 26

Voltage Reference ....................................................................... 28

Clock Input Considerations ...................................................... 29

Power Dissipation and Standby Mode ..................................... 31

Digital Outputs ........................................................................... 32

Timing .......................................................................................... 32

ADC Overrange and Gain Control .............................................. 33

Fast Detect Overview ................................................................. 33

ADC Fast Magnitude ................................................................. 33

ADC Overrange (OR) ................................................................ 34

Gain Switching ............................................................................ 34

Signal Monitor ................................................................................ 36

Peak Detector Mode................................................................... 36

RMS/MS Magnitude Mode ......................................................... 36

Threshold Crossing Mode ......................................................... 37

Additional Control Bits ............................................................. 37

DC Correction ............................................................................ 37

Signal Monitor SPORT Output ................................................ 38

Built-In Self-Test (BIST) and Output Test .................................. 39

Built-In Self-Test (BIST) ............................................................ 39

Output Test Modes ..................................................................... 39

Channel/Chip Synchronization .................................................... 40

Serial Port Interface (SPI) .............................................................. 41

Configuration Using the SPI ..................................................... 41

Hardware Interface ..................................................................... 41

Configuration Without the SPI ................................................ 42

SPI Accessible Features .............................................................. 42

Memory Map .................................................................................. 43

Reading the Memory Map Register Table ............................... 43

Memory Map Register Table ..................................................... 44

Memory Map Register Descriptions ........................................ 47

Applications Information .............................................................. 50

Design Guidelines ...................................................................... 50

Evaluation Board ............................................................................ 51

Power Supplies ............................................................................ 51

Input Signals................................................................................ 51

Output Signals ............................................................................ 51

Default Operation and Jumper Selection Settings ................. 52

Alternative Clock Configurations ............................................ 52

Alternative Analog Input Drive Configuration...................... 53

Schematics ................................................................................... 54

Evaluation Board Layouts ......................................................... 64

Bill of Materials ........................................................................... 72

Outline Dimensions ....................................................................... 74

Ordering Guide .......................................................................... 74