Datasheet

AD8122 Data Sheet
Rev. 0 | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
Maximum Power Dissipation ..................................................... 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Adjustable Control Voltages ...................................................... 12
Differential Inputs ...................................................................... 12
Outputs ........................................................................................ 12
On-Chip Comparators .............................................................. 12
Input Single-Ended Voltage Range Considerations .............. 12
Applications Information .............................................................. 13
Basic Operation .......................................................................... 13
Input Overdrive Recovery and Protection .............................. 13
Comparator Applications .......................................................... 13
Sync Pulse Extraction Using Comparators ............................. 14
Using the V
PEAK
, V
GAIN
, V
FILTER
, and V
OFFSET
Inputs ................. 15
Using the COAX/
UTP
Selector ................................................ 15
Driving High Impedance Capacitive Loads ........................... 15
Driving 75 Ω Cable with the AD8122 ..................................... 15
Layout and Power Supply Decoupling Considerations ......... 15
Input Common-Mode Range ................................................... 15
Power-Down ............................................................................... 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
REVISION HISTORY
7/12—Revision 0: Initial Version