Datasheet

AD8229 Data Sheet
Rev. B | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 6
Predicted Lifetime vs. Operating Temperature ........................ 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 17
Architecture ................................................................................ 17
Gain Selection ............................................................................. 17
Reference Terminal .................................................................... 17
Input Voltage Range ................................................................... 18
Layout .......................................................................................... 18
Input Bias Current Return Path ............................................... 19
Input Protection ......................................................................... 19
Radio Frequency Interference (RFI) ........................................ 19
Calculating the Noise of the Input Stage ................................. 20
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 21
REVISION HISTORY
2/12—Rev. A to Rev. B
Added 8-Lead SOIC ........................................................... Universal
Changes to Features Section and General Description Section...... 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2, Thermal Resistance Section, and Table 3 ... 6
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 21
9/11Rev. 0 to Rev. A
Changes to Features Section and General Description Section...... 1
Changes to Table 2 ............................................................................ 6
Ad
ded Predicted Lifetime vs. Operating Temperature Section and
Figure 3; Renumbered Sequentially .............................................. 6
Changes to Figure 18 and Figure 19 ............................................. 10
Changes to Figure 24 to Figure 28 ................................................ 11
Changes to Figure 29 and Figure 30 ............................................. 12
Changes to Figure 48 ...................................................................... 15
Changes to Figure 56 ...................................................................... 17
Changes to Power Supplies Section .............................................. 18
1/11—Revision 0: Initial Version