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AD637
TABLE OF CONTENTS
Features .............................................................................................. 1 ?
Functional Block Diagram .............................................................. 1 ?
General Description ......................................................................... 1 ?
Revision History ............................................................................... 2 ?
Specifications..................................................................................... 3 ?
Absolute Maximum Ratings............................................................ 5 ?
ESD Caution.................................................................................. 5 ?
Pin Configurations and Function Descriptions ........................... 6 ?
Functional Description .................................................................... 7 ?
Standard Connection ................................................................... 8 ?
Chip Select..................................................................................... 8 ?
Optional Trims for High Accuracy ............................................ 8 ?
REVISION HISTORY
2/11—Rev. J to Rev. K
Changes to Figure 15...................................................................... 11
Changes to Figure 16...................................................................... 12
Changes to Evaluation Board Section and Figure 23................. 16
Added Figure 24; Renumbered Sequentially .............................. 17
Changes to Figure 25 Through Figure 29.................................... 17
Changes to Figure 30...................................................................... 18
Added Figure 31.............................................................................. 18
Deleted Table 6; Renumbered Sequentially ................................ 18
Changes to Ordering Guide .......................................................... 20
4/07—Rev. I to Rev. J
Added Evaluation Board Section ................................................. 16
Updated Outline Dimensions ....................................................... 20
10/06—Rev. H to Rev. I
Changes to Table 1............................................................................ 3
Changes to Figure 4.......................................................................... 7
Choosing the Averaging Time Constant....................................9 ?
Frequency Response .................................................................. 11 ?
AC Measurement Accuracy and Crest Factor ........................ 12 ?
Connection for dB Output........................................................ 12 ?
dB Calibration............................................................................. 13 ?
Low Frequency Measurements................................................. 14 ?
Vector Summation ..................................................................... 14 ?
Evaluation Board ............................................................................ 16 ?
Outline Dimensions ....................................................................... 19 ?
Ordering Guide .......................................................................... 20 ?
4/05—Rev. F to Rev. G
Updated Format..................................................................Universal
Changes to Figure 1...........................................................................1
Changes to General Description .....................................................1
Deleted Product Highlights .............................................................1
Moved Figure 4 to Page ....................................................................8
Changes to Figure 5...........................................................................9
Changes to Figure 8........................................................................ 10
Changes to Figure 11, Figure 12, Figure 13, and Figure 14....... 11
Changes to Figure 19...................................................................... 14
Changes to Figure 20...................................................................... 14
Changes to Figure 21...................................................................... 16
Updated Outline Dimensions....................................................... 17
Changes to Ordering Guide .......................................................... 18
3/02—Rev. E to Rev. F
Edits to Ordering Guide ...................................................................3
Changes to Figure 7.......................................................................... 9
Changes to Figure 16, Figure 18, and Figure 19 ......................... 12
Changes to Figure 20...................................................................... 13
12/05—Rev. G to Rev. H
Updated Format..................................................................Universal
Changes to Figure 1.......................................................................... 1
Changes to Figure 11...................................................................... 10
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 17
Rev. K | Page 2 of 20
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