ADA4805-1/ADA4805-2
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Amplifier Description................................................................ 18
Input Protection ......................................................................... 18
Shutdown Operation.................................................................. 18
Noise Considerations................................................................. 19
Applications Information.............................................................. 20
Slew Enhancement..................................................................... 20
Effect of Feedback Resistor on Frequency Response ............ 20
Applications....................................................................................... 1
General Description......................................................................... 1
Typical Applications Circuit............................................................ 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
±± ꢀ Supply................................................................................... 3
± ꢀ Supply...................................................................................... 4
3 ꢀ Supply...................................................................................... ±
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
Maximum Power Dissipation ..................................................... 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 10
Test Circuits..................................................................................... 17
Theory of Operation ...................................................................... 18
REVISION HISTORY
Compensating Peaking in Large Signal Frequency Response
....................................................................................................... 20
Driving Low Power, High Resolution Successive
Approximation Register (SAR) ADCs..................................... 20
Dynamic Power Scaling............................................................. 21
Single-Ended to Differential Conversion ................................... 23
Layout Considerations............................................................... 23
Outline Dimensions....................................................................... 24
Ordering Guide .......................................................................... 2±
12/14—Rev. A to Rev. B
Changes to Figure 7 Caption, Figure 8 Caption, Figure 9
Added 10-Lead LFCSP....................................................... Universal
Caption, Figure 10 Caption, and Figure 11 Caption.....................9
Changes to Figure 13 Caption, Figure 14, Figure 17, and
SHUTDOWN
SHUTDOWN
SHUTDOWN
Changes to
Changes to
Changes to
Current Parameter, Table 2................3
Current Parameter, Table 3................±
Current Parameter, Table 4................6
Figure 18 ...........................................................................................10
Change to Figure 29 ........................................................................12
Moved Figure 41..............................................................................1±
Changes to Figure 42.......................................................................1±
Added Figure 43 ..............................................................................1±
Changes to Figure 47 and Figure 48..............................................16
Changes to Amplifier Description Section, Input Protection
Section, Shutdown Operation Section, and Figure ±1................17
Changes to Noise Considerations Section and Figure ±2 ..........18
Changes to Effect of Feedback Resistor on Frequency Response
Section, Compensating Peaking in Large Signal Frequency
Response Section, Figure ±7, and Driving Low Power, High
Resolution Successive Approximation Register (SAR) ADC
Section...............................................................................................19
Changes to Figure ±8, Dynamic Power Scaling Section,
Changes to Table 6 and Figure 3......................................................7
Changes to Table 8.............................................................................9
Added Figure 6, Renumbered Sequentially ...................................9
Added Figure 42...............................................................................16
Changed Layout...............................................................................16
Changes to Shutdown Operation Section ....................................18
Changes to Dynamic Power Scaling Section and Figure 61 ......21
Changes to Figure 62 and Figure 63..............................................22
Updated Outline Dimensions........................................................2±
Changes to Ordering Guide ...........................................................2±
9/14—Rev. 0 to Rev. A
Added ADA480±-2............................................................. Universal
Changes to Features Section, General Description Section, and
Table 1 .................................................................................................1
Changes to Table 2.............................................................................3
Changes to Table 3.............................................................................4
Changes to Table 4.............................................................................±
Changes to Table 6 and Figure 3......................................................7
Added Figure 6; Renumbered Sequentially; and Table 8;
Renumbered Sequentially.................................................................8
Figure ±9, and Table 10...................................................................20
Change to Figure 60 ........................................................................21
Changes to Single-Ended to Differential Conversion Section,
Table 11, and Figure 62...................................................................22
Updated Outline Dimensions, Figure 6± .....................................24
Changes to Ordering Guide...........................................................24
7/14—Revision 0: Initial Version
Rev. B | Page 2 of 25
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