Datasheet
AD8295
Rev. A | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Connection Diagram ....................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Instrumentation Amplifier Specifications, Single-Ended and
Differential Output Configurations ........................................... 3
Op Amp Specifications ................................................................ 5
Internal Resistor Network ........................................................... 6
Power and Temperature Specifications ..................................... 6
Absolute Maximum Ratings ............................................................ 7
Thermal Characteristics .............................................................. 7
ESD Caution .................................................................................. 7
Pin Configuration and Function Descriptions ............................. 8
Typical Performance Characteristics ............................................. 9
In-Amp .......................................................................................... 9
Op Amps ...................................................................................... 16
System .......................................................................................... 18
Theory of Operation ...................................................................... 19
Uncommitted Op Amps ............................................................ 19
Instrumentation Amplifier........................................................ 19
Layout .......................................................................................... 20
Input Protection ......................................................................... 21
Input Bias Current Return Path ............................................... 21
RF Interference ........................................................................... 21
Differential Output .................................................................... 22
Applications Information .............................................................. 23
Creating a Reference Voltage at Midscale ............................... 23
High Accuracy G = −1 Configuration with Low-Pass Filter .. 23
Two-Pole Sallen-Key Filter ........................................................ 24
AC-Coupled Instrumentation Amplifier ................................ 24
Driving Differential ADCs ........................................................ 25
Outline Dimensions ....................................................................... 26
Ordering Guide .......................................................................... 26
REVISION HISTORY
6/09—Rev. 0 to Rev. A
Changes to General Description Section ...................................... 1
Changes to Table 1 ............................................................................ 1
Changes to Table 3 ............................................................................ 5
Added Figure 42, Figure 45, and Figure 46; Renumbered
Sequentially ..................................................................................... 16
Added Figure 49 .............................................................................. 17
Changes to Figure 51 and Figure 52 ............................................. 17
Added Figure 53 and Figure 54..................................................... 18
Changes to Figure 59 ...................................................................... 19
Added Routing and Vias Section .................................................. 20
Updated Outline Dimensions ....................................................... 26
10/08—Revision 0: Initial Version