Datasheet

AD7323 Data Sheet
Rev. B | Page 2 of 36
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Timing Specifications .................................................................. 7
Absolute Maximum Ratings ............................................................ 8
ESD Caution .................................................................................. 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 14
Theory of Operation ...................................................................... 16
Circuit Information .................................................................... 16
Converter Operation .................................................................. 16
Analog Input Structure .............................................................. 17
Typical Connection Diagram ................................................... 19
Analog Input ............................................................................... 19
Driver Amplifier Choice ............................................................ 21
Registers ........................................................................................... 22
Addressing Registers .................................................................. 22
Control Register ......................................................................... 23
Sequence Register ....................................................................... 25
Range Register ............................................................................ 25
Sequencer Operation ..................................................................... 26
Reference ..................................................................................... 28
V
DRIVE
............................................................................................ 28
Modes of Operation ....................................................................... 29
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
Serial Interface ................................................................................ 32
Microprocessor Interfacing ........................................................... 33
AD7323 to ADSP-21xx .............................................................. 33
AD7323 to ADSP-BF53x ........................................................... 33
Application Hints ........................................................................... 34
Layout and Grounding .............................................................. 34
Power Supply Configuration .................................................... 34
Outline Dimensions ....................................................................... 35
Ordering Guide .......................................................................... 35
REVISION HISTORY
12/13—Rev. A to Rev. B
Changes to Circuit Information Section and Table 6 ................ 16
Changes to Addressing Registers Section .................................... 22
Changes to Power Supply Configuration Section ...................... 34
1/10—Rev. 0 to Rev. A
Changes to Features and General Description Sections .............. 1
Changes to Power Requirements, Normal Mode (Operational),
I
CC
and I
DRIVE
Parameter; and Power Dissipation, Normal Mode
(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
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