AD8436
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
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
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
REVISION HISTORY
1/13—Rev. A to Rev. B
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
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
7/11—Revision 0: Initial Version
Rev. B | Page 2 of 24