Datasheet
AD8657/AD8659 Data Sheet
Rev. B | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Pin Connection Diagrams ............................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics—18 V Operation ............................. 3
Electrical Characteristics—10 V Operation ............................. 4
Electrical Characteristics—2.7 V Operation ............................ 5
Absolute Maximum Ratings ............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ..............................................9
Applications Information .............................................................. 19
Input Stage ................................................................................... 19
Output Stage ................................................................................ 20
Rail to Rail ................................................................................... 20
Resistive Load ............................................................................. 20
Comparator Operation—AD8657 ........................................... 21
EMI Rejection Ratio .................................................................. 22
4 mA to 20 mA Process Control Current Loop Transmitter—
AD8657 ........................................................................................ 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 24
REVISION HISTORY
8/12—Rev. A to Rev. B
Added AD8659 ................................................................... Universal
Changes to Features Section............................................................ 1
Changes to Pin Connection Diagrams Section ............................ 1
Added Figure 3, Renumbered Figures Sequentially ..................... 1
Changes to Table 1 ............................................................................ 1
Reordered Table 2 and Table 4 ........................................................ 3
Changes to Table 2 ............................................................................ 3
Changes to Table 3 ............................................................................ 4
Changes to Table 4 ............................................................................ 5
Changes to Table 6 ................................
............................................ 6
Added Pin Configurations and Function Descriptions Section 7
Added Figure 4 and Figure 5 ........................................................... 7
Added Table 7, Renumbered Tables Sequentially ........................ 7
Added Figure 6 and Figure 7 ........................................................... 8
Added Table 8 .................................................................................... 8
Changes to Figure 10 and Figure 13 ............................................... 9
Changes to Figure 14, Figure 15, Figure 17, and Figure 18 ....... 10
Changes to Figure 28 and Figure 31 ............................................. 12
Changes to Figure 32 ...................................................................... 13
Changes to Figure 39 ...................................................................... 14
Changes to Figure 63 and Figure 66 ............................................. 18
Moved Figure 68 ............................................................................. 19
Change to Inverting Op Amp Configuration Section Heading
and Changes to Figure 70 .............................................................. 20
Change to Noninverting Op Amp Configuration Heading and
Changes to Figure 71 ...................................................................... 20
Change to Comparator Operation—AD8657 Heading ............ 21
Change to 4 mA to 20 mA Process Control Current Loop
Transmitter—AD8657 Section Heading and Changed
33 μA to 34 μA ................................................................................ 22
Updated Outline Dimensions ....................................................... 24
Added Figure 81 and Figure 82 .................................................... 24
Changes to Ordering Guide .......................................................... 24
3/11—Rev. 0 to Rev. A
Added LFCSP Package Information ........................... Throughout
Added Figure 2, Renumbered Subsequent Figures .................... 1
Changes to Table 2, Introductory Text; Input Characteristics,
Offset Voltage and Common-Mode Rejection Ratio Test
Conditions/Comments; and Dynamic Performance, Phase
Margin Value s .................................................................................... 3
Changes to Table 3, Introductory Text; Input Characteristics,
Offset Voltage and Common-Mode Rejection Ratio Test
Conditions/Comments ..................................................................... 4
Changes to Table 4, Introductory Text; Input Characteristics,
Offset Voltage and Common-Mode Rejection Ratio Test
Conditions/Comments ..................................................................... 5
Changes to Thermal Resistance Section and Table 5 ................... 6
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 21
1/11—Revision 0: Initial Version