AD7328
TABLE OF CONTENTS
Features .............................................................................................. 1
Control Register ......................................................................... 22
Sequence Register....................................................................... 24
Range Registers........................................................................... 24
Sequencer Operation ..................................................................... 2±
Reference ..................................................................................... 27
VDRIVE ............................................................................................ 27
Temperature Indicator............................................................... 27
Modes of Operation ....................................................................... 28
Normal Mode.............................................................................. 28
Full Shutdown Mode.................................................................. 28
Autoshutdown Mode ................................................................. 29
Autostandby Mode..................................................................... 29
Power vs. Throughput Rate....................................................... 3ꢀ
Serial Interface ................................................................................ 31
Microprocessor Interfacing........................................................... 32
AD7328 to ADSP-21xx.............................................................. 32
AD7328 to ADSP-BF±3x........................................................... 32
Application Hints ........................................................................... 33
Layout and Grounding .............................................................. 33
Outline Dimensions....................................................................... 34
Ordering Guide .......................................................................... 34
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 ...................................................................... 1±
Circuit Information.................................................................... 1±
Converter Operation.................................................................. 1±
Analog Input Structure.............................................................. 16
Typical Connection Diagram ................................................... 18
Analog Input ............................................................................... 18
Driver Amplifier Choice............................................................ 2ꢀ
Registers........................................................................................... 21
Addressing Registers.................................................................. 21
REVISION HISTORY
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 ....................................................................... 2ꢀ
Change to Control Register Section............................................. 23
10/05—Revision 0: Initial Version
Rev. A | Page 2 of 36