AD8260

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TABLE OF CONTENTS

Features .............................................................................................. 1

 

Applications....................................................................................... 1

 

Functional Block Diagram .............................................................. 1

 

General Description ......................................................................... 1

 

Revision History ............................................................................... 2

 

Specifications..................................................................................... 3

 

Absolute Maximum Ratings............................................................ 6

 

ESD Caution.................................................................................. 6

 

Pin Configuration and Function Descriptions............................. 7

 

Typical Performance Characteristics ............................................. 8

 

Test Circuits..................................................................................... 16

 

Theory of Operation ...................................................................... 20

 

Overview...................................................................................... 20

 

High Current Driver Amplifier ................................................ 21

 

Precautions to Be Observed During Half-Duplex

Operation..................................................................................... 22

 

VMID Buffer............................................................................... 22

 

Preamplifier................................................................................. 22

 

Preamplifier Noise...................................................................... 22

 

DGA ............................................................................................. 23

 

Gain Control ............................................................................... 23

 

Output Stage................................................................................ 23

 

Attenuator.................................................................................... 23

 

Single-Supply Operation and AC Coupling ........................... 24

 

Power-Up/Power-Down Sequence .......................................... 24

 

Logic Interfaces........................................................................... 24

 

Applications Information .............................................................. 25

 

Evaluation Board ............................................................................ 26

 

Connecting the Evaluation Board............................................ 27

 

Outline Dimensions ....................................................................... 32

 

Ordering Guide .......................................................................... 32

 

REVISION HISTORY

5/08—Revision 0: Initial Version