Datasheet

AD8614/AD8644
Rev. B | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Typical Performance Characteristics ............................................. 5
Theory of Operation ........................................................................ 9
Output Short-Circuit Protection.................................................9
Input Overvoltage Protection ................................................... 10
Output Phase Reversal............................................................... 10
Power Dissipation....................................................................... 10
Unused Amplifiers ..................................................................... 10
Capacitive Load Drive ............................................................... 11
Direct Access Arrangement ...................................................... 11
A One-Chip Headphone/Microphone Preamplifier
Solution........................................................................................ 11
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
REVISION HISTORY
9/07—Rev. A to Rev B
Change to Current Noise Density in Table 1 ................................ 3
12/06—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Deleted SPICE Model Availability Section.................................. 12
Updated Outline Dimensions....................................................... 13
Changes to Ordering Guide .......................................................... 14
10/99—Revision 0: Initial Version