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AD7328 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD7328
Description  8-Channel, Software-Selectable True Bipolar Input, 12-Bit Plus Sign ADC
Download  36 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7328 Datasheet(HTML) 2 Page - Analog Devices

 
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AD7328
Rev. A | 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.............................................................................. 28
Full Shutdown Mode.................................................................. 28
Autoshutdown Mode ................................................................. 29
Autostandby Mode..................................................................... 29
Power vs. Throughput Rate....................................................... 30
Serial Interface ................................................................................ 31
Microprocessor Interfacing........................................................... 32
AD7328 to ADSP-21xx.............................................................. 32
AD7328 to ADSP-BF53x ........................................................... 32
Application Hints ........................................................................... 33
Layout and Grounding .............................................................. 33
Outline Dimensions ....................................................................... 34
Ordering Guide .......................................................................... 34
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 ....................................................................... 20
Change to Control Register Section............................................. 23
10/05—Revision 0: Initial Version


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