link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 3 link to page 7 link to page 7 link to page 7 link to page 8 link to page 9 link to page 19 link to page 19 link to page 19 link to page 20 link to page 20 link to page 21 link to page 21 link to page 22 link to page 22 link to page 22 link to page 23 link to page 24 link to page 24 link to page 20 link to page 21 AD8227TABLE OF CONTENTS Features .. 1 Gain Selection ... 19 Applications ... 1 Reference Terminal .. 20 Pin Configuration ... 1 Input Voltage Range ... 20 General Description ... 1 Layout .. 20 Revision History ... 2 Input Bias Current Return Path ... 21 Specifications ... 3 Input Protection ... 21 Absolute Maximum Ratings .. 7 Radio Frequency Interference (RFI) .. 21 Thermal Resistance .. 7 Applications Information .. 22 ESD Caution .. 7 Differential Drive ... 22 Pin Configuration and Function Descriptions ... 8 Precision Strain Gage ... 22 Typical Performance Characteristics ... 9 Driving an ADC ... 23 Theory of Operation .. 19 Outline Dimensions ... 24 Architecture ... 19 Ordering Guide .. 24 REVISION HISTORY5/09—Revision 0: Initial Version Rev. 0 | Page 2 of 24 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE GAIN SELECTION REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies References INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION DIFFERENTIAL DRIVE Tips for Best Differential Output Performance PRECISION STRAIN GAGE DRIVING AN ADC OUTLINE DIMENSIONS ORDERING GUIDE