Datasheet

AD7788/AD7789
Rev. B | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Interface ............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AD7789.......................................................................................... 3
AD7788.......................................................................................... 4
AD7788/AD7789.......................................................................... 5
Timing Characteristics ................................................................ 6
Timing Diagrams.......................................................................... 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
On-Chip Registers.......................................................................... 11
Communications Register......................................................... 11
Status Register............................................................................. 12
Mode Register............................................................................. 13
Data Register............................................................................... 13
ADC Circuit Information.............................................................. 14
Noise Performance ..................................................................... 14
Digital Interface.......................................................................... 14
Circuit Description......................................................................... 17
Analog Input Channel ............................................................... 17
Bipolar/Unipolar Configuration .............................................. 17
Data Output Coding .................................................................. 17
Reference Input........................................................................... 17
V
DD
Monitor................................................................................ 18
Grounding and Layout .............................................................. 18
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 19
REVISION HISTORY
3/06—Rev. A to Rev. B
Changes to Ordering Guide .......................................................... 19
11/04—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Added Footnote 2 to Integral Nonlinearity A Grade................... 4
Changes to Figure 5.......................................................................... 9
Updated Outline Dimensions....................................................... 19
Changes to Ordering Guide .......................................................... 19
8/03—Revision 0: Initial Version