Datasheet

AD7608 Data Sheet
Rev. A | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Companion Products ....................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
General Description ......................................................................... 3
Specifications ..................................................................................... 4
Timing Specifications .................................................................. 6
Absolute Maximum Ratings .......................................................... 10
Thermal Resistance .................................................................... 10
ESD Caution ................................................................................ 10
Pin Configuration and Function Descriptions ........................... 11
Typical Performance Characteristics ........................................... 14
Terminology .................................................................................... 18
Theory of Operation ...................................................................... 19
Converter Details ....................................................................... 19
Analog Input ............................................................................... 19
ADC Transfer Function ............................................................. 20
Internal/External Reference ...................................................... 21
Typical Connection Diagram ................................................... 22
Power-Down Modes .................................................................. 22
Conversion Control ................................................................... 23
Digital Interface .............................................................................. 24
Parallel Interface (
PAR
/SER SEL = 0) ...................................... 24
Serial Interface (
PAR
/SER SEL = 1) ......................................... 25
Reading During Conversion ..................................................... 25
Digital Filter ................................................................................ 26
Layout Guidelines....................................................................... 30
Outline Dimensions ....................................................................... 32
Ordering Guide .......................................................................... 32
REVISION HISTORY
1/12—Rev. 0 to Rev. A
Changes to Analog Input Ranges Section ···································· 19
4/11—Revision 0: Initial Versi on