Table Of Contents; Revision History - Analog Devices AD9273 Manual

AD9273

TABLE OF CONTENTS

Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Product Highlights ........................................................................... 3
Specifications ..................................................................................... 4
AC Specifications .......................................................................... 4
Digital Specifications ................................................................... 8
Switching Specifications .............................................................. 9
ADC Timing Diagrams ................................................................. 10
Absolute Maximum Ratings .......................................................... 11
Thermal Impedance ................................................................... 11
ESD Caution ................................................................................ 11
Pin Configuration and Function Descriptions ........................... 12
Typical Performance Characteristics ........................................... 15
Equivalent Circuits ......................................................................... 19

REVISION HISTORY

7/09-Rev. A to Rev. B
Added BGA Package .......................................................... Universal
Changes to Features and General Description Sections .............. 1
Changes to Product Highlights Section ......................................... 3
Changes to Full-Channel (TGC) Characteristics Parameter,
Table 1 ............................................................................................ 4
Changes to Gain Control Interface Parameter and to CW
Doppler Mode Parameter, Table 1 .............................................. 6
Change to Wake-Up Time (Standby), GAIN+ = 0.8 V
Parameter ....................................................................................... 9
Changes to Figure 2 and Figure 3 ................................................. 10
Changes to Table 4 .......................................................................... 11
Addded Figure 5; Renumbered Sequentially .............................. 12
Changes to Table 6 .......................................................................... 13
Changes to Figure 34 and Figure 35 ............................................. 20
Theory of Operation ...................................................................... 21
Ultrasound .................................................................................. 21
Channel Overview ..................................................................... 22
Input Overdrive .......................................................................... 25
CW Doppler Operation ............................................................. 25
TGC Operation ........................................................................... 27
ADC ............................................................................................. 31
Clock Input Considerations ...................................................... 31
Serial Port Interface (SPI) .............................................................. 38
Hardware Interface ..................................................................... 38
Memory Map .................................................................................. 40
Reading the Memory Map Table .............................................. 40
Reserved Locations .................................................................... 40
Default Values ............................................................................. 40
Logic Levels ................................................................................. 40
Outline Dimensions ....................................................................... 44
Ordering Guide .......................................................................... 45
Changes to Ultrasound Section .................................................... 21
Changes to Low Noise Amplifier (LNA) Section ....................... 22
Changes to Active Impedance Matching Section and
Figure 40 ...................................................................................... 23
Changes to LNA Noise Section .................................................... 24
Changes to Input Overload Protection Section and Figure 44 ....... 25
Changes to Figure 48 ...................................................................... 28
Changes to Figure 49 and Figure 50............................................. 29
Changes to Clock Input Considerations Section and to
Figure 56 to Figure 59 ................................................................ 31
Changes to Digital Outputs and Timing Section ....................... 33
Changes to CSB Pin Section ......................................................... 36
Changes to Reading the Memory Map Table Section ............... 40
Updated Outline Dimensions ....................................................... 44
Changes to Ordering Guide .......................................................... 45
4/09-Revision A: Initial Version
Rev. B | Page 2 of 48