AD8285

Data Sheet

Rev. B | Page 2 of 27

TABLE OF CONTENTS

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

 

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

 

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

 

General Description ......................................................................... 1

 

Revision History ............................................................................... 2

 

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

 

AC Specifications.......................................................................... 3

 

Digital Specifications ................................................................... 5

 

Switching Specifications .............................................................. 6

 

Absolute Maximum Ratings............................................................ 7

 

ESD Caution.................................................................................. 7

 

Pin Configuration and Function Descriptions............................. 8

 

Typical Performance Characteristics ........................................... 10

 

Theory of Operation ...................................................................... 14

 

Radar Receive Path AFE............................................................ 14

 

Channel Overview...................................................................... 15

 

ADC ............................................................................................. 16

 

Clock Input Considerations ...................................................... 16

 

Clock Duty Cycle Considerations ............................................ 17

 

Clock Jitter Considerations ....................................................... 17

 

SDIO Pin...................................................................................... 17

 

SCLK Pin ..................................................................................... 17

 

CS Pin .......................................................................................... 17

 

RBIAS Pin.................................................................................... 17

 

Voltage Reference ....................................................................... 18

 

Power and Ground Recommendations ................................... 18

 

Exposed Paddle Thermal Heat Slug Recommendations ...... 18

 

Serial Peripheral Interface (SPI) ................................................... 19

 

Hardware Interface..................................................................... 19

 

Memory Map .................................................................................. 21

 

Reading the Memory Map Table.............................................. 21

 

Logic Levels................................................................................. 21

 

Reserved Locations .................................................................... 21

 

Default Values ............................................................................. 21

 

Application Diagrams .................................................................... 25

 

Outline Dimensions ....................................................................... 27

 

Ordering Guide .......................................................................... 27

 

Automotive Products ................................................................. 27

 

REVISION HISTORY

9/15—Rev. A to Rev. B

Added Table 1; Renumbered Sequentially .................................... 1

10/14—Rev. 0 to Rev. A

Changes to Addr. (Hex) 0x15, Table 8 ......................................... 23

Changes to Ordering Guide .......................................................... 27

5/14—Revision 0: Initial Version