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AD605ANZ

Dual, Low Noise, Single-Supply Variable Gain Amplifier

Analog Devices 

AD605

TABLE OF CONTENTS

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

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

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

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

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

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

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics (per Channel) ................... 7

Theory of Operation ...................................................................... 13

Differential Ladder (Attenuator) .............................................. 14

AC Coupling ............................................................................... 14

REVISION HISTORY

6/08—Rev. E to Rev. F

Added Evaluation Board Section ................................................. 18

Added Figure 42 and Table 4......................................................... 18

Added Figure 43 and Figure 44..................................................... 19

Added Figure 45 to Figure 50........................................................ 20

5/07—Rev. D to Rev. E

Changes to Table 1............................................................................ 5

Changes to Fixed Gain Amplifier and Interpolator Circuits—

Applying an Active Feedback Amplifier Section........................ 15

Updated Outline Dimensions ....................................................... 18

Changes to Ordering Guide .......................................................... 19

1/06—Rev. C to Rev. D

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

Changes to Table 2............................................................................ 5

Changes to Differential Ladder (Attenuator) Section ............... 14

Updated the Outline Dimensions ................................................ 18

Changes to the Ordering Guide.................................................... 19

Gain Control Interface............................................................... 14

Fixed Gain Amplifier and Interpolator Circuits—Applying an

Active Feedback Amplifier........................................................ 15

Applications Information .............................................................. 16

Connecting Two Amplifiers to Double the Gain Range....... 16

Evaluation Board ............................................................................ 18

Input Connections ..................................................................... 18

Adjusting Gain, Common-Mode, and Reference Levels ...... 18

Output Connections .................................................................. 18

Outline Dimensions ....................................................................... 21

Ordering Guide .......................................................................... 22

7/04—Rev. B to Rev. C

Edits to General Description ...........................................................1

Edits to Specifications .......................................................................2

Edits to Ordering Guide ...................................................................3

Change to TPC 22 .............................................................................6

Updated Outline Dimensions ....................................................... 12

Rev. F | Page 2 of 24

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