Datasheet

AD7327 Data Sheet
Rev. B | Page 2 of 36
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
Control Register .......................................................................... 22
Sequence Register ....................................................................... 23
Range Registers ........................................................................... 24
Sequencer Operation ..................................................................... 25
Reference ..................................................................................... 27
V
DRIVE
............................................................................................ 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 ....................................................... 30
Serial Interface ................................................................................ 31
Microprocessor Interfacing ........................................................... 32
AD7327 to ADSP-21xx .............................................................. 32
AD7327 to ADSP-BF53x ........................................................... 32
Application Hints ........................................................................... 33
Layout and Grounding .............................................................. 33
Power Supply Configuration .................................................... 33
Outline Dimensions ....................................................................... 34
Ordering Guide .......................................................................... 34
REVISION HISTORY
12/13—Rev. A to Re v. B
Changes to Circuit Information Section and Table 6 ................ 16
Changes to Addressing Registers Section .................................... 22
Changes to Power Supply Configuration Section ...................... 33
Changes to Ordering Guide .......................................................... 34
1/10—Rev. 0 to Rev. A
Change to Features and Product Highlights Sections ................. 1
Changes to Table 2 ............................................................................ 5
Change to Endnote 1 in Table 4 ...................................................... 8
Added Power Supply Configuration Section, Figure 56, and
Table 1 6 ............................................................................................ 33
1/06—Revision 0: Initial Version