Datasheet
ADA4927-1/ADA4927-2
Rev. A | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams ............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
±5 V Operation ............................................................................. 3
+5 V Operation ............................................................................. 5
Absolute Maximum Ratings ............................................................ 7
Thermal Resistance ...................................................................... 7
Maximum Power Dissipation ..................................................... 7
ESD Caution .................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ............................................. 9
Test Circuits ..................................................................................... 15
Theory of Operation ...................................................................... 16
Definition of Terms .................................................................... 16
Applications Information .............................................................. 17
Analyzing an Application Circuit ............................................ 17
Setting the Closed-Loop Gain .................................................. 17
Estimating the Output Noise Voltage ...................................... 17
Impact of Mismatches in the Feedback Networks ................. 18
Calculating the Input Impedance for an Application Circuit
....................................................................................................... 18
Input Common-Mode Voltage Range ..................................... 20
Input and Output Capacitive AC Coupling ............................ 20
Setting the Output Common-Mode Voltage .......................... 20
Power-Down ............................................................................... 21
Layout, Grounding, and Bypassing .............................................. 22
High Performance ADC Driving ................................................. 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 24
REVISION HISTORY
8/09—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 24
10/08—Revision 0: Initial Version