OP281 Analog Devices, OP281 Datasheet - Page 2

• Manufacturer Part Number: OP281
• Description: Ultralow Power, Rail-to-Rail Output Operational Amplifier (Dual)
• Manufacturer: Analog Devices

Specifications of OP281

• -3db Bandwidth: 105kHz
• Slew Rate: 28mV/µs
• Vos: 100µV
• Ib: 3nA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 75nV/rtHz
• Vcc-vee: 2.7V to 12V
• Isy Per Amplifier: 5µA
• Packages: SOIC,SOP

OP281/OP481
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 6
Typical Performance Characteristics ............................................. 7
Applications ..................................................................................... 13
REVISION HISTORY
9/08—Rev. C to Rev. D
Changes to Figure 40 ...................................................................... 14
Changes to Low-Side Current Monitor Section ......................... 15
Changes to Figure 42 ...................................................................... 15
10/07—Rev. B to Rev. C
Updated Format .................................................................. Universal
Changes to Offset Voltage Drift Condition .................................. 3
Changes to Slew Rate Symbol ......................................................... 5
Changes to Figure 8 .......................................................................... 7
Deleted SPICE Macro-Model Section ......................................... 13
Updated Outline Dimensions ....................................................... 17
Changes to Ordering Guide .......................................................... 18
3/03—Rev. A to Rev. B
Changes to Features .......................................................................... 1
Electrical Specifications ............................................................... 3
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Rev. D | Page 2 of 20
Outline Dimensions ....................................................................... 17
2/03—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Deleted OP181 .................................................................... Universal
Updated Package Options ................................................. Universal
Deleted OP181 Pin Configurations ................................................ 1
Deleted Epoxy DIP Pin Configurations ......................................... 1
Changes to Absolute Maximum Ratings ........................................ 5
Changes to Ordering Guide ............................................................. 5
Changes to Input Offset Voltage ................................................... 10
Deleted Former Figure 33 ............................................................. 10
Deleted Overdrive Recovery Time Section ................................. 11
Deleted Former Figure 36 ............................................................. 11
Deleted 8-Lead and 14-Lead Plastic DIP (N-8 and N-14)
Outline Dimensions ....................................................................... 14
Updated Outline Dimensions ....................................................... 14
Theory of Operation .................................................................. 13
Input Overvoltage Protection ................................................... 13
Input Offset Voltage ................................................................... 13
Input Common-Mode Voltage Range ..................................... 13
Capacitive Loading ..................................................................... 14
Micropower Reference Voltage Generator .............................. 14
Window Comparator ................................................................. 14
Low-Side Current Monitor ....................................................... 15
Low Voltage Half-Wave and Full-Wave Rectifiers ................. 15
Battery-Powered Telephone Headset Amplifier ..................... 15
Ordering Guide .......................................................................... 18