AD795

Rev. C | Page 2 of 20

TABLE OF CONTENTS

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

 

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

 

Connection Diagram ....................................................................... 1

 

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

 

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

 

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

 

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

 

Thermal Resistance ...................................................................... 5

 

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

 

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

 

Minimizing Input Current ............................................................ 11

 

Circuit Board Notes........................................................................ 12

 

Offset Nulling ............................................................................. 13

 

AC Response with High Value Source and Feedback Resistance

........................................................................................................... 14

 

Overload Issues............................................................................... 15

 

Input Protection ......................................................................... 15

 

Preamplifier Applications.......................................................... 16

 

Minimizing Noise Contributions............................................. 16

 

Using a T Network ..................................................................... 17

 

A pH Probe Buffer Amplifier ................................................... 17

 

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

 

Ordering Guide .......................................................................... 18

 

REVISION HISTORY

12/09—Rev. B to Rev. C

Changes to Features Section and General Description Section . 1

Changes to Input Bias Current Parameter, Table 1 ...................... 3

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

Added Thermal Resistance Section ............................................... 5

Added Table 3; Renumbered Sequentially .................................... 5

Changes to Minimizing Input Current Section.......................... 11

Changes to Circuit Board Notes Section and Figure 33............ 12

Changes to Input Protection Section ........................................... 15

Changes to Ordering Guide .......................................................... 18

10/02—Rev. A to Rev. B

Deleted Plastic Mini-DIP (N) Package ............................Universal

Edits to Features................................................................................ 1

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

Edits to Absolute Maximum Ratings ............................................. 3

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

Edits to Circuit Board Notes ........................................................... 9

Edits to Figure 31.............................................................................. 9

Edits to Offset Nulling ................................................................... 10

Deleted Figure 34............................................................................ 10

Deleted Low Noise Op Amp Selection Tree ............................... 15

Updated Outline Dimensions ....................................................... 15