Datasheet

AD8253 Data Sheet
Rev. B | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Timing Diagram ........................................................................... 5
Absolute Maximum Ratings ............................................................ 6
Maximum Power Dissipation ..................................................... 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 16
Gain Selection ............................................................................. 16
Power Supply Regulation and Bypassing ................................ 18
Input Bias Current Return Path ............................................... 18
Input Protection ......................................................................... 18
Reference Terminal .................................................................... 19
Common-Mode Input Voltage Range ..................................... 19
Layout .......................................................................................... 19
RF Interference ........................................................................... 19
Driving an Analog-to-Digital Converter ................................ 20
Applications Information .............................................................. 21
Differential Output .................................................................... 21
Setting Gains with a Microcontroller ...................................... 21
Data Acquisition ......................................................................... 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
REVISION HISTORY
10/12—Rev. A to Rev. B
Changed Digital Input Voltage Low Maximum Parameter from
1.2 V to 2.1 V and Changed Digital Input Voltage High Typical
Parameter from 1.5 V to 2.8 V ........................................................ 4
Updated Outline Dimensions ....................................................... 23
8/08—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 23
7/08—Revision 0: Initial Version