Datasheet

AD8432 Data Sheet
Rev. C | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
Maximum Power Dissipation ..................................................... 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Test Circuits ..................................................................................... 16
Theory of Operation ...................................................................... 18
Low Noise Amplifier (LNA) ..................................................... 18
Gain Setting Technique ............................................................. 18
Active Input Resistance Matching............................................ 19
Applications Information .............................................................. 21
Typical Setup ............................................................................... 21
I/Q Demodulation Front End ................................................... 23
Differential-to-Single-Ended Conversion ............................... 24
Evaluation Board ............................................................................ 25
Connection and Operation ....................................................... 25
Schematic..................................................................................... 28
Outline Dimensions ....................................................................... 29
Ordering Guide .......................................................................... 29
REVISION HISTORY
7/12—Rev. B to Rev. C
Changes to Figure 1 .......................................................................... 1
Changes to Figure 65 ...................................................................... 18
Change to Figure 69 ....................................................................... 21
Changes to Table 7 .......................................................................... 22
Deleted Gain Settings Section and Table 8.................................. 25
Changes to Evaluation Board Section and Figure 73; Added
Connection and Operation Section and Table 8 ........................ 25
Added Figure 74 to Figure 78, Renumbered Sequentially ........ 26
Added Figure 79 .............................................................................. 27
Changes to Figure 80 ...................................................................... 28
Updated Outline Dimensions ....................................................... 29
3/
11—Rev. A to Rev. B
Changes to Format ......................................................................... 21
2/10—Rev. 0 to Rev. A
Changes to General Description ..................................................... 1
Changes to Figure 5, Figure 6, Figure 7, Figure 8 .......................... 7
Added Figure 27, Figure 29, and Figure 31, Renumbered
Sequentially ..................................................................................... 11
Added Figure 33 and Figure 35 .................................................... 12
Changes to Figure 58 ...................................................................... 16
10/09—Revision 0: Initial Version