AD8644 Analog Devices, AD8644 Datasheet - Page 2

• Manufacturer Part Number: AD8644
• Description: 18 V Operational Amplifier (Quad)
• Manufacturer: Analog Devices

Specifications of AD8644

• -3db Bandwidth: 5.5MHz
• Slew Rate: 7.5V/µs
• Vos: 1mV
• Ib: 80nA
• # Opamps Per Pkg: 4
• Input Noise (nv/rthz): 12nV/rtHz
• Vcc-vee: 5V to 18V
• Isy Per Amplifier: 1.1mA
• Packages: SOIC,SOP

AD8614/AD8644
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Typical Performance Characteristics ............................................. 5
Theory of Operation ........................................................................ 9
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
Electrical Characteristics............................................................. 3
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Rev. B | Page 2 of 16
Outline Dimensions ....................................................................... 13
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
Ordering Guide .......................................................................... 14