AD7323(RevB) Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

fabricante

AD7323
(Rev.:RevB)

500 kSPS, 4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC

Analog Devices 

AD7323

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

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),

ICC and IDRIVE 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

Data Sheet

Control Register ......................................................................... 23

Sequence Register....................................................................... 25

Range Register ............................................................................ 25

Sequencer Operation ..................................................................... 26

Reference ..................................................................................... 28

VDRIVE ............................................................................................ 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

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

Rev. B | Page 2 of 36

Share Link: