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 7 link to page 8 link to page 9 link to page 9 link to page 15 link to page 17 link to page 18 link to page 18 link to page 18 link to page 18 link to page 19 link to page 19 link to page 19 link to page 20 link to page 20 link to page 20 link to page 21 link to page 21 link to page 21 link to page 21 link to page 22 link to page 23 link to page 23 link to page 23 AD8231Data SheetTABLE OF CONTENTS Features .. 1 Gain Selection ... 18 Applications ... 1 Reference Terminal .. 18 Functional Block Diagram .. 1 Layout .. 19 General Description ... 1 Input Bias Current Return Path ... 19 Revision History ... 2 Input Protection ... 19 Specifications ... 3 RF Interference ... 20 Absolute Maximum Ratings .. 7 Common-Mode Input Voltage Range ... 20 Thermal Resistance .. 7 Reducing Noise ... 20 Maximum Power Dissipation ... 7 Applications Information .. 21 ESD Caution .. 7 Differential Output .. 21 Pin Configuration and Function Descriptions ... 8 Multiplexing .. 21 Typical Performance Characteristics ... 9 Using the AD8231 with Bipolar Supplies .. 21 Instrumentation Amplifier Performance Curves ... 9 Sal en Key Filter .. 22 Operational Amplifier Performance Curves .. 15 Outline Dimensions ... 23 Performance Curves Valid for Both Amplifiers ... 17 Ordering Guide .. 23 Theory of Operation .. 18 Automotive Products ... 23 Amplifier Architecture .. 18 REVISION HISTORY 10/2017—Rev. D to Rev. E Inserted Figure 9; Renumbered Sequentially.. 10 Changed CP-16-17 to CP-16-23 .. Throughout Inserted Figure 16, and Figure 18 to Figure 20; Renumbered Updated Outline Dimensions ... 23 Sequentially ... 11 Changes to Ordering Guide .. 23 Inserted Figure 24; Renumbered Sequentially ... 12 Deleted Figure 28 and Figure 29; Renumbered Sequentially ... 13 3/2017—Rev. C to Rev. D Inserted Figure 33 and Figure 34; Renumbered Sequential y .. 14 Updated Outline Dimensions ... 23 Inserted Figure 41 to Figure 46; Renumbered Sequential y ... 16 Changes to Ordering Guide .. 23 Inserted Figure 48; Renumbered Sequentially ... 17 Changes to Gain Selection Section and Figure 50 ... 18 12/2014—Rev. B to Rev. C Added Input Protection Section ... 19 Changes to Figure 12 to Figure 14 Captions ... 10 Added Reducing Noise Section .. 20 Changes to Figure 19 and Figure 20 ... 11 Changes to Multiplexing Section ... 21 Updated Outline Dimensions ... 23 Added Using the AD8231 with Bipolar Supplies Section ... 21 Changes to Ordering Guide .. 23 Added Sal en Key Filter Section ... 22 Changes to Ordering Guide .. 23 4/2011—Rev. A to Rev. B Changes to Features Section and Applications Section ... 1 5/2007—Revision 0: Initial Version Added Exposed Pad Notation to Outline Dimensions ... 23 Changes to Ordering Guide .. 23 Added Automotive Products Section... 23 9/2007—Rev. 0 to Rev. A Changes to Features and General Description ... 1 Changes to Table 2 .. 3 Changes to Table 3 .. 5 Changes to Typical Performance Characteristics Layout .. 9 Inserted Figure 3 to Figure 8; Renumbered Sequential y .. 9 Rev. E | Page 2 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS INSTRUMENTATION AMPLIFIER PERFORMANCE CURVES OPERATIONAL AMPLIFIER PERFORMANCE CURVES PERFORMANCE CURVES VALID FOR BOTH AMPLIFIERS THEORY OF OPERATION AMPLIFIER ARCHITECTURE GAIN SELECTION REFERENCE TERMINAL LAYOUT Power Supplies Package Considerations Thermal Pad INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION RF INTERFERENCE COMMON-MODE INPUT VOLTAGE RANGE REDUCING NOISE APPLICATIONS INFORMATION DIFFERENTIAL OUTPUT MULTIPLEXING USING THE AD8231 WITH BIPOLAR SUPPLIES SALLEN KEY FILTER OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS
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