ADA4895-1/ADA4895-2

Data Sheet

TABLE OF CONTENTS

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

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

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

Functional Block Diagrams............................................................. 1

Companion Products....................................................................... 1

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

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

±5 V (or +10 V) Supply ............................................................... 3

±2.5 V (or +5 V) Supply .............................................................. 4

±1.5 V (or +3 V) Supply .............................................................. 5

Absolute Maximum Ratings............................................................ 7

Thermal Resistance ...................................................................... 7

Maximum Power Dissipation ..................................................... 7

ESD Caution.................................................................................. 7

Pin Configurations and Function Descriptions ........................... 8

Typical Performance Characteristics ........................................... 10

Theory of Operation ...................................................................... 16

Amplifier Description................................................................ 16

Input Protection ......................................................................... 16

Disable Operation ...................................................................... 16

DC Errors .................................................................................... 17

Bias Current Cancellation ......................................................... 17

Noise Considerations................................................................. 18

Applications Information .............................................................. 19

Using the ADA4895-1/ADA4895-2 at a Gain < +10.............. 19

High Gain Bandwidth Application .......................................... 20

Feedback Capacitor Application .............................................. 20

Wideband Photomultiplier Preamplifier ................................ 21

Layout Considerations............................................................... 22

Outline Dimensions....................................................................... 23

Ordering Guide .......................................................................... 24

REVISION HISTORY

4/15—Rev. A to Rev. B

Changes to Amplifier Description Section ................................. 16

Changes to Ordering Guide .......................................................... 24

12/12—Rev. 0 to Rev. A

Added ADA4895-1.............................................................Universal

Changes to Features Section, General Description Section, and

Table 1 ............................................................................................................. 1

Added Figure 1; Renumbered Sequentially .................................. 1

Changes to Table 2............................................................................ 3

Changes to Table 3............................................................................ 4

Changes to Table 4............................................................................ 5

Changes to Figure 4.......................................................................... 7

Added Figure 5, Table 7, Figure 6, and Table 8............................. 8

Added Figure 14 and Figure 17..................................................... 11

Changes to Figure 24...................................................................... 12

Added Figure 26 and Figure 29..................................................... 13

Changes to Amplifier Description Section ................................. 16

Changes to Noise Considerations Section .................................. 18

Added Feedback Capacitor Applications Section and

Figure 54 .......................................................................................... 20

Updated Outline Dimensions....................................................... 23

Changes to Ordering Guide .......................................................... 24

9/12—Revision 0: Initial Version

Rev. B | Page 2 of 24