AD9272 Analog Devices, AD9272 Datasheet - Page 2

• Manufacturer Part Number: AD9272
• Description: Octal LNA/VGA/AAF/ADC and Crosspoint Switch
• Manufacturer: Analog Devices

Specifications of AD9272

• Resolution (bits): 12bit
• # Chan: 8
• Sample Rate: 80MSPS
• Interface: LVDS,Ser
• Analog Input Type: SE-Uni
• Ain Range: 367 mV p-p,550 mV p-p,733 mV p-p
• Adc Architecture: Pipelined
• Pkg Type: QFP

AD9272
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Product Highlights ........................................................................... 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings .......................................................... 11
Pin Configuration and Function Descriptions ........................... 12
Typical Performance Characteristics ........................................... 15
Equivalent Circuits ......................................................................... 19
Theory of Operation ...................................................................... 21
REVISION HISTORY
7/09—Rev. B to Rev. C
Changes to Input Overload Protection Section and Figure 43 ....... 25
Changes to Digital Outputs and Timing Section and Changes
to Figure 63 ...................................................................................... 33
Changes to Hardware Interface Section ...................................... 39
6/09—Rev. A to Rev. B
Changes to Product Highlights Section ......................................... 3
Changes to Table 1 ............................................................................ 4
Changes to Absolute Maximum Ratings Table ........................... 11
Changes to Figure 22 ...................................................................... 17
Changes to Figure 33 and Figure 34 ............................................. 20
Changes to Low Noise Amplifier (LNA) Section ....................... 22
Changes to Active Impedance Matching Section ....................... 23
Changes to Figure 39 ...................................................................... 23
Changes to LNA Noise Section ..................................................... 24
Changes to Figure 47 ...................................................................... 28
Changes to Figure 48 and Figure 49 ............................................. 29
Changes to CSB Pin Section .......................................................... 36
Changes to Reading the Memory Map Table Section................ 40
4/09—Revision A: Initial Version
AC Specifications .......................................................................... 4
Digital Specifications ................................................................... 8
Switching Specifications .............................................................. 9
Thermal Impedance ................................................................... 11
ESD Caution ................................................................................ 11
Rev. C | Page 2 of 44
Serial Port Interface (SPI) .............................................................. 38
Memory Map .................................................................................. 40
Outline Dimensions ....................................................................... 44
Ultrasound .................................................................................. 21
Channel Overview ..................................................................... 22
Input Overdrive .......................................................................... 25
CW Doppler Operation ............................................................. 25
TGC Operation ........................................................................... 27
ADC ............................................................................................. 31
Clock Input Considerations ...................................................... 31
Hardware Interface ..................................................................... 38
Reading the Memory Map Table .............................................. 40
Reserved Locations .................................................................... 40
Default Values ............................................................................. 40
Logic Levels ................................................................................. 40
Ordering Guide .......................................................................... 44