AD7934-6
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Terminology ...................................................................................... 9
Typical Performance Characteristics ........................................... 11
Control Register.............................................................................. 13
Sequencer Operation ................................................................. 14
Note on Writing to the Control Register to
Program the Sequencer ............................................................. 14
Circuit Information ........................................................................ 15
Converter Operation.................................................................. 15
ADC Transfer Function............................................................. 15
Typical Connection Diagram ................................................... 16
Analog Input Structure.............................................................. 16
Analog Input Configurations ................................................... 17
Analog Input Selection .............................................................. 19
Reference Section ....................................................................... 20
Parallel Interface......................................................................... 21
Power Modes of Operation ....................................................... 24
Power vs. Throughput Rate....................................................... 25
Microprocessor Interfacing....................................................... 25
Application Hints ........................................................................... 27
Grounding and Layout .............................................................. 27
Evaluating the AD7934-6 Performance .................................. 27
Outline Dimensions ....................................................................... 28
Ordering Guide .......................................................................... 28
REVISION HISTORY
10/05鈥擱ev. 0 to Rev. A
Changes to Product Highlights....................................................... 1
Inserted Table 1................................................................................. 1
Changes to Specifications ................................................................ 3
Changes to Timing Specifications .................................................. 5
Changes to Pin Function Descriptions.......................................... 7
Added Writing to the Control Register to
Program the Sequencer Section.................................................... 14
Changes to the Analog Inputs Section......................................... 17
Changes to the Grounding and Layout Section ......................... 27
1/05鈥擱evision 0: Initial Version
Rev. A | Page 2 of 28