AD7329 데이터 시트보기 (PDF) - Analog Devices

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AD7329

1 MSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC

Analog Devices 

AD7329

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 ........................................... 11

Terminology .................................................................................... 15

Theory of Operation ...................................................................... 17

Circuit Information.................................................................... 17

Converter Operation.................................................................. 17

Output Coding............................................................................ 18

Transfer Functions...................................................................... 18

Analog Input Structure .............................................................. 18

Track-and-Hold Section ............................................................ 19

Typical Connection Diagram ................................................... 20

Analog Input ............................................................................... 20

Driver Amplifier Choice............................................................ 23

Registers ........................................................................................... 25

REVISION HISTORY

2/10—Rev. 0 to Rev. A

Changes to DC Accuracy Parameter, Test Conditions/

Comments, Table 2....................................................................... 4

Change to Normal Mode (Operational) ICC and IDRIVE

Parameter and to Power Dissipation Normal Mode

Parameter, Table 2 ........................................................................ 6

Changes to Table 16 and Table 17 ................................................ 36

Added Applications Information Section, Figure 60,

and Table 18 ................................................................................ 37

Changes to Ordering Guide .......................................................... 38

4/06—Revision 0: Initial Version

Addressing Registers .................................................................. 25

Control Register ......................................................................... 26

Sequence Register....................................................................... 28

Range Registers........................................................................... 28

Sequencer Operation ..................................................................... 29

Reference ..................................................................................... 31

VDRIVE ............................................................................................ 31

Temperature Indicator ............................................................... 31

Modes of Operation ....................................................................... 32

Normal Mode (PM1 = PM0 = 0) ............................................. 32

Full Shutdown Mode (PM1 = PM0 = 1) ................................. 32

Autoshutdown Mode (PM1 = 1, PM0 = 0)............................. 33

Autostandby Mode (PM1 = 0, PM0 =1) ................................. 33

Power vs. Throughput Rate....................................................... 34

Serial Interface ................................................................................ 35

Microprocessor Interfacing........................................................... 36

AD7329 to ADSP-21xx.............................................................. 36

AD7329 to ADSP-BF53x ........................................................... 36

Applications Information .............................................................. 37

Layout and Grounding .............................................................. 37

Power Supply Configuration .................................................... 37

Outline Dimensions ....................................................................... 38

Ordering Guide .......................................................................... 38

Rev. A | Page 2 of 40

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