Datasheet
AD7678
Rev. A | Page 2 of 28
TABLE OF CONTENTS
Specifications ..................................................................................... 3
Timing Specifications ....................................................................... 5
Absolute Maximum Ratings ............................................................ 7
ESD Caution .................................................................................. 7
Pin Configuration and Function Descriptions ............................. 8
Definition of Specifications ........................................................... 11
Typical Performance Characteristics ........................................... 12
Circuit Information ........................................................................ 15
Converter Operation .................................................................. 15
Typical Connection Diagram ................................................... 17
Power Dissipation versus Throughput .................................... 19
Conversion Control .................................................................... 19
Digital Interface .......................................................................... 20
Parallel Interface ......................................................................... 20
Serial Interface ............................................................................ 20
Master Serial Interface ............................................................... 21
Slave Serial Interface .................................................................. 22
Microprocessor Interfacing ....................................................... 24
Application Hints ........................................................................... 25
Layout .......................................................................................... 25
Evaluating the AD7678’s Performance .................................... 25
Outline Dimensions ....................................................................... 26
Ordering Guide .......................................................................... 26
REVISION HISTORY
6/09—Rev. 0 to Rev. A
Removed Endnote 3 from DC Accuracy; Zero Error, T
MIN
to
T
MAX
Parameter; Table 2 ................................................................... 3
Changes to Endnote 3, Table 2 ........................................................ 4
Moved ESD Caution ......................................................................... 7
Changes to Figure 4 and Table 6 ..................................................... 8
Changes to Evaluating the AD7678’s Performance Section ...... 25
Updated Outline Dimensions ....................................................... 26
Changes to Ordering Guide .......................................................... 26
8/03—Revision 0: Initial Version