AD603

Rev. G | Page 2 of 20

TABLE OF CONTENTS

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

Absolute Maximum Ratings............................................................ 4

ESD Caution.................................................................................. 4

Pin Configuration and Function Descriptions............................. 5

Typical Performance Characteristics ............................................. 6

Theory of Operation ...................................................................... 11

Noise Performance ..................................................................... 11

The Gain Control Interface....................................................... 12

Programming the Fixed-Gain Amplifier

Using Pin Strapping ................................................................... 12

Using the AD603 in Cascade ........................................................ 14

Sequential Mode (Optimal S/N Ratio).................................... 14

Parallel Mode (Simplest Gain Control Interface) .................. 16

Low Gain Ripple Mode (Minimum Gain Error) ................... 16

Applications..................................................................................... 18

A Low Noise AGC Amplifier .................................................... 18

Caution ........................................................................................ 19

Outline Dimensions ....................................................................... 20

Ordering Guide .......................................................................... 20

REVISION HISTORY

3/05—Rev. F to Rev. G

Updated Format.................................................................. Universal

Change to Features ............................................................................1

Changes to General Description .....................................................1

Change to Figure 1 ............................................................................1

Changes to Specifications .................................................................3

New Figure 4 and Renumbering Subsequent Figures...................6

Change to Figure 10 ..........................................................................7

Change to Figure 23 ..........................................................................9

Change to Figure 29 ........................................................................12

Updated Outline Dimensions ........................................................20

4/04—Rev. E to Rev. F

Changes to Specifications .................................................................2

Changes to Ordering Guide .............................................................3

8/03—Rev. D to Rev E

Updated Format.................................................................. Universal

Changes to Specifications .................................................................2

Changes to TPCs 2, 3, 4.....................................................................4

Changes to Sequential Mode (Optimal S/N Ratio) section .........9

Change to Figure 8 ..........................................................................10

Updated Outline Dimensions ........................................................14