Datasheet

AD8436 Data Sheet
Rev. B | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
ESD Caution .................................................................................. 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Test Circuits ........................................................................................9
Theory of Operation ...................................................................... 10
Overview ..................................................................................... 10
Applications Information .............................................................. 12
Using the AD8436 ....................................................................... 12
AD8436 Evaluation Board ............................................................. 17
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 21
REVISION HISTORY
1/13—Rev. A to Rev. B
Added B Grade Throughout ............................................. Universal
Changes to Figure 1 and changes to General Description .......... 1
Changes to Table 1 ............................................................................ 3
Changes to Figure 3 ......................................................................... 5
Changes to Figure 9 and Figure 10 ................................................. 6
Changes to FET Input Buffer Section .......................................... 11
Changes to Averaging Capacitor Considerations—RMS
Accuracy Section and changes to Figure 28 ................................ 12
Deleted Capacitor Construction Section; added CAVG
Capacitor Styles Section ................................................................. 13
Added Converting to Average Rectified Value Section ............. 15
Changes to Figure 41 ...................................................................... 16
Changes to Evaluation Board Section .......................................... 17
Changes to Figure 48 ...................................................................... 19
Changes to Outline Dimensions ................................................... 20
Changes to Ordering Guide .......................................................... 21
7/12—Rev. 0 to Rev. A
Added 20-Lead QSOP ........................................................ Universal
Changes to Features Section and General Description Section . 1
Changes to Table 1 ............................................................................. 3
Changes to Table 2 ............................................................................. 4
Changes to Table 3 and added Figure 4 and added Table 4;
Renumbered Sequentially ................................................................ 5
Changes to Equation 1 and change to Column One Heading
in Table 5 .......................................................................................... 10
Changes to Averaging Capacitor Considerations—RMS
Accuracy and to Post Conversion Ripple Reduction Filter
and changes to Figure 27 Caption ................................................ 12
Changes to Figure 30 to Figure 32 ................................................ 13
Changes to Using the FET Input Buffer Section and Using the
Output Buffer Section .................................................................... 14
Changes to Figure 38 and Figure 41 and added Converting
to Rectified Average Value Section .............................................. 15
Changes to Figure 41 ...................................................................... 16
Changes to Figure 42 to Figure 46 ................................................ 17
Changes to Figure 47 and Figure 48 ............................................ 18
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 20
7/11—Revision 0: Initial Version