AD8146/AD8147/AD8148
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 14
Definition of Terms.................................................................... 14
Analyzing an Application Circuit............................................. 14
Closed-Loop Gain ...................................................................... 14
Calculating the Input Impedance............................................. 15
REVISION HISTORY
5/07—Revision 0: Initial Version
Input Common-Mode Voltage Range in Single-Supply
Applications ................................................................................ 15
Output Common-Mode Control ............................................. 15
Sync-On Common-Mode ......................................................... 15
Applications..................................................................................... 16
Driving RGB Video Signals Over Category-5 UTP Cable.... 16
Video Sync-On Common-Mode.............................................. 16
Driving Two UTP Cables With One Driver ........................... 18
Using the AD8146 as a Receiver............................................... 18
Output Pull-Down (OPD) ........................................................ 19
Layout and Power Supply Decoupling Considerations......... 19
Driving a Capacitive Load......................................................... 19
Adding Pre-Emphasis to the AD8148 ..................................... 20
Exposed Paddle (EP).................................................................. 21
Outline Dimensions ....................................................................... 22
Ordering Guide .......................................................................... 22
Rev. 0 | Page 2 of 24