AD7328

Data Sheet

Rev. C | Page 2 of 36

TABLE OF CONTENTS

Features .............................................................................................. 1

General Description......................................................................... 1

Functional Block Diagram .............................................................. 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Specifications .................................................................. 6

Absolute Maximum Ratings............................................................ 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ............................................. 9

Terminology .................................................................................... 13

Theory of Operation ...................................................................... 15

Circuit Information.................................................................... 15

Converter Operation.................................................................. 15

Analog Input Structure.............................................................. 16

Typical Connection Diagram ................................................... 18

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

Driver Amplifier Choice............................................................ 20

Registers........................................................................................... 21

Addressing Registers.................................................................. 21

Control Register.......................................................................... 22

Sequence Register....................................................................... 24

Range Registers........................................................................... 24

Sequencer Operation ..................................................................... 25

Reference ..................................................................................... 27

VDRIVE............................................................................................ 27

Temperature Indicator............................................................... 27

Modes of Operation ....................................................................... 28

Normal Mode (PM1 = PM0 = 0) ............................................. 28

Full Shutdown Mode (PM1 = PM0 = 1) ................................. 28

Autoshutdown Mode (PM1 = 1, PM0 = 0)............................. 29

Autostandby Mode (PM1 = 0, PM0 = 1) ................................ 29

Power vs. Throughput Rate....................................................... 30

Serial Interface ................................................................................ 31

Microprocessor Interfacing........................................................... 32

AD7328 to ADSP-21xx.............................................................. 32

AD7328 to ADSP-BF53x........................................................... 32

Applications Information .............................................................. 33

Layout and Grounding .............................................................. 33

Power Supply Configuration .................................................... 33

Outline Dimensions....................................................................... 34

Ordering Guide .......................................................................... 34

REVISION HISTORY

1/14—Rev. B to Rev. C

Changes to Circuit Information Section and Table 6 ................ 15

Changes to Addressing Registers Section.................................... 21

Changes to Power Supply Configuration Section ...................... 33

Changes to Ordering Guide .......................................................... 34

2/10—Rev. A to Rev. B

Change to Product Highlights Section .......................................... 1

Changes to DC Accuracy Parameter, Test Conditions/

Comments, Table 2....................................................................... 3

Parameter and to Power Dissipation Normal Mode

Parameter, Table 2 ........................................................................ 5

Changes to Table 14 and Table 15 ................................................ 32

Added Power Supply Configuration Section and Figure 56..... 33

Changes to Ordering Guide .......................................................... 34

6/06—Rev. 0 to Rev. A

Changes to Table 1.............................................................................1

Changes to Specifications.................................................................3

Added Thermal Hysteresis to Terminology Section.................. 14

Change to Figure 42 ....................................................................... 20

Change to Control Register Section............................................. 23

10/05—Revision 0: Initial Version