link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 2 link to page 3 link to page 3 link to page 3 link to page 3 link to page 6 link to page 6 link to page 6 link to page 6 link to page 6 link to page 6 link to page 7 link to page 7 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 13 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 17 link to page 17 link to page 18 link to page 18 OP281/OP481TABLE OF CONTENTS Features .. 1 Theory of Operation .. 13 Applications ... 1 Input Overvoltage Protection ... 13 Pin Configurations ... 1 Input Offset Voltage ... 13 General Description ... 1 Input Common-Mode Voltage Range ... 13 Revision History ... 2 Capacitive Loading ... 14 Specifications ... 3 Micropower Reference Voltage Generator .. 14 Electrical Specifications ... 3 Window Comparator ... 14 Absolute Maximum Ratings .. 6 Low-Side Current Monitor ... 15 Thermal Resistance .. 6 Low Voltage Half-Wave and Full-Wave Rectifiers ... 15 ESD Caution .. 6 Battery-Powered Telephone Headset Amplifier ... 15 Typical Performance Characteristics ... 7 Outline Dimensions ... 17 Applications ... 13 Ordering Guide .. 18 REVISION HISTORY9/08—Rev. C to Rev. D2/03—Rev. 0 to Rev. A Changes to Figure 40 .. 14 Updated Format .. Universal Changes to Low-Side Current Monitor Section ... 15 Deleted OP181 .. Universal Changes to Figure 42 .. 15 Updated Package Options ... Universal 10/07—Rev. B to Rev. C Deleted OP181 Pin Configurations .. 1 Deleted Epoxy DIP Pin Configurations ... 1 Updated Format .. Universal Changes to Absolute Maximum Ratings .. 5 Changes to Offset Voltage Drift Condition .. 3 Changes to Ordering Guide ... 5 Changes to Slew Rate Symbol ... 5 Changes to Input Offset Voltage ... 10 Changes to Figure 8 .. 7 Deleted Former Figure 33 ... 10 Deleted SPICE Macro-Model Section ... 13 Deleted Overdrive Recovery Time Section ... 11 Updated Outline Dimensions ... 17 Deleted Former Figure 36 ... 11 Changes to Ordering Guide .. 18 Deleted 8-Lead and 14-Lead Plastic DIP (N-8 and N-14) 3/03—Rev. A to Rev. B Outline Dimensions ... 14 Changes to Features .. 1 Updated Outline Dimensions ... 14 Rev. D | Page 2 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS THEORY OF OPERATION INPUT OVERVOLTAGE PROTECTION INPUT OFFSET VOLTAGE INPUT COMMON-MODE VOLTAGE RANGE CAPACITIVE LOADING MICROPOWER REFERENCE VOLTAGE GENERATOR WINDOW COMPARATOR LOW-SIDE CURRENT MONITOR LOW VOLTAGE HALF-WAVE AND FULL-WAVE RECTIFIERS BATTERY-POWERED TELEPHONE HEADSET AMPLIFIER OUTLINE DIMENSIONS ORDERING GUIDE