AD7327
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
1/06—Revision 0: Initial Version
Control Register ......................................................................... 23
Sequence Register....................................................................... 25
Range Registers........................................................................... 25
Sequencer Operation ..................................................................... 26
Reference ..................................................................................... 28
VDRIVE............................................................................................ 28
Temperature Indicator............................................................... 28
Modes of Operation ....................................................................... 29
Normal Mode.............................................................................. 29
Full Shutdown Mode.................................................................. 29
Autoshutdown Mode ................................................................. 30
Autostandby Mode..................................................................... 30
Power vs. Throughput Rate....................................................... 31
Serial Interface ................................................................................ 32
Microprocessor Interfacing........................................................... 33
AD7327 to ADSP-21xx.............................................................. 33
AD7327 to ADSP-BF53x ........................................................... 33
Application Hints ........................................................................... 34
Layout and Grounding .............................................................. 34
Outline Dimensions ....................................................................... 35
Ordering Guide .......................................................................... 35
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