AD7323 Analog Devices, AD7323 Datasheet - Page 2

• Manufacturer Part Number: AD7323
• Description: 500 kSPS, 4-Channel, Software Selectable True bipolar Input, 12-Bit Plus Sign A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7323

• Resolution (bits): 13bit
• # Chan: 4
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: Bip 10V,Bip 2.5V,Bip 5.0V,Uni 10V
• Adc Architecture: SAR
• Pkg Type: SOP

AD7323
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 14
Theory of Operation ...................................................................... 16
Registers ........................................................................................... 22
REVISION HISTORY
1/10—Rev. 0 to Rev. A
Changes to Features and General Description Sections .............. 1
Changes to Power Requirements, Normal Mode (Operational),
I
(Operational) Parameter, Table 2 ................................................... 5
Changes to Endnote 1, Table 4 ........................................................ 8
Changes to Table 6, Figure 23, and Figure 24 ............................. 16
Changes to Figure 25, Figure 26, and Figure 29 ......................... 17
Changes to Figure 30 ...................................................................... 18
Changes to Figure 33 and Figure 34 ............................................. 19
CC
Timing Specifications .................................................................. 7
ESD Caution .................................................................................. 8
Circuit Information .................................................................... 16
Converter Operation .................................................................. 16
Analog Input Structure .............................................................. 17
Typical Connection Diagram ................................................... 19
Analog Input ............................................................................... 19
Driver Amplifier Choice ............................................................ 21
Addressing Registers .................................................................. 22
and I
DRIVE
Parameter; and Power Dissipation, Normal Mode
Rev. A | Page 2 of 36
Sequencer Operation ..................................................................... 26
Modes of Operation ....................................................................... 29
Serial Interface ................................................................................ 32
Microprocessor Interfacing ........................................................... 33
Application Hints ........................................................................... 34
Outline Dimensions ....................................................................... 35
Changes to Figure 39 ...................................................................... 20
Changes to Figure 40 and Figure 41............................................. 21
Changes to Autostandby Mode (PM1 = 0, PM0 = 1) Section .. 30
Changes to Table 14 and Table 15 ................................................ 33
Added Power Supply Configuration Section .............................. 34
Added Figure 54; Renumbered Sequentially .............................. 34
Added Table 16; Renumbered Sequentially ................................ 34
Changes to Ordering Guide .......................................................... 35
1/06—Revision 0: Initial Version
Control Register ......................................................................... 23
Sequence Register ....................................................................... 25
Range Register ............................................................................ 25
Reference ..................................................................................... 28
V
Normal Mode (PM1 = PM0 = 0) ............................................. 29
Full Shutdown Mode (PM1 = PM0 = 1) ................................. 29
Autoshutdown Mode (PM1 = 1, PM0 = 0) ............................. 30
Autostandby Mode (PM1 = 0, PM0 = 1) ................................ 30
Power vs. Throughput Rate ....................................................... 31
AD7323 to ADSP-21xx .............................................................. 33
AD7323 to ADSP-BF53x ........................................................... 33
Layout and Grounding .............................................................. 34
Power Supply Configuration .................................................... 34
Ordering Guide .......................................................................... 35
DRIVE
............................................................................................ 28