AD736
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
RMS Measurement—Choosing the Optimum Value for CAV .... 11
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 10
Types of AC Measurement........................................................ 10
Calculating Settling Time Using Figure 16............................. 11
Rapid Settling Times via the Average Responding
Connection.................................................................................. 12
DC Error, Output Ripple, and Averaging Error..................... 12
AC Measurement Accuracy and Crest Factor............................ 12
Applications..................................................................................... 13
Connecting the Input................................................................. 13
Selecting Practical Values for Input Coupling (CC),
Averaging (CAV), and Filtering (CF) Capacitors...................... 14
Additional Application Concepts............................................. 15
Evaluation Board ............................................................................ 17
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 20
REVISION HISTORY
12/12—Rev. H to Rev. I
Changes to Features .........................................................................1
Added Table 3 ...................................................................................6
Changes to Figure 21 and Figure 22 ........................................... 14
Changes to Figure 23, Figure 24, and Figure 25........................ 15
Updated Outline Dimensions...................................................... 16
Changes to Ordering Guide......................................................... 17
Changes to Features and Figure 1.................................................. 1
Change to Error vs. Crest Factor Parameter, Table 1.................. 3
Changes to Operating Voltage Range Parameter, Table 1.......... 4
Changes to Table 2........................................................................... 5
Added Table 3; Renumbered Sequentially ................................... 5
Changes to Figure 9......................................................................... 8
Changes to Figure 16....................................................................... 9
Changes to Figure 18..................................................................... 10
Added Additional Application Concepts Section and
Changes to Figure 25..................................................................... 15
Changes to Figure 29..................................................................... 17
Deleted Table 6............................................................................... 17
Changes to Ordering Guide ......................................................... 20
5/04—Rev. E to Rev. F
Changes to Specifications................................................................2
Replaced Figure 18 ........................................................................ 10
Updated Outline Dimensions...................................................... 16
Changes to Ordering Guide......................................................... 16
4/03—Rev. D to Rev. E
Changes to General Description .................................................1
Changes to Specifications.............................................................3
Changes to Absolute Maximum Ratings....................................4
Changes to Ordering Guide.........................................................4
2/07—Rev. G to Rev. H
Updated Layout.......................................................................9 to 12
Added Applications Section......................................................... 13
Inserted Figure 21 to Figure 24; Renumbered Sequentially..... 13
Deleted Figure 25........................................................................... 15
Added Evaluation Board Section................................................. 16
Inserted Figure 29 to Figure 34; Renumbered Sequentially..... 16
Inserted Figure 35; Renumbered Sequentially........................... 17
Added Table 6................................................................................. 17
11/02—Rev. C to Rev. D
Changes to Functional Block Diagram.......................................1
Changes to Pin Configuration.....................................................3
Figure 1 Replaced ..........................................................................6
Changes to Figure 2.......................................................................6
Changes to Application Circuits Figures 4 to 8.........................8
Outline Dimensions Updated......................................................8
2/06—Rev. F to Rev. G
Updated Format.................................................................Universal
Rev. I | Page 2 of 20