Datasheet

AD7609 Data Sheet
Rev. A | Page 2 of 36
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Companion Products ....................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
General Description ......................................................................... 3
Specifications ..................................................................................... 4
Timing Specifications .................................................................. 7
Absolute Maximum Ratings .......................................................... 11
Thermal Resistance .................................................................... 11
ESD Caution ................................................................................ 11
Pin Configuration and Function Descriptions ........................... 12
Typical Performance Characteristics ........................................... 15
Terminology .................................................................................... 19
Theory of Operation ...................................................................... 21
Converter Details ....................................................................... 21
Analog Input ............................................................................... 21
ADC Transfer Function ............................................................. 22
Internal/External Reference ...................................................... 23
Typical Connection Diagram ................................................... 24
Power-Down Modes .................................................................. 24
Conversion Control ................................................................... 25
Digital Interface .............................................................................. 26
Parallel Interface (
PAR
/SER SEL = 0) ...................................... 26
Serial Interface (
PAR
/SER SEL = 1) ......................................... 26
Reading During Conversion ..................................................... 27
Digital Filter ................................................................................ 28
Layout Guidelines....................................................................... 32
Outline Dimensions ....................................................................... 34
Ordering Guide .......................................................................... 34
REVISION HISTORY
2/12—Rev. 0 to Re v. A
Changes to Analog Input Ranges Section .................................... 21
7/11—Revision 0: Initial Version