Datasheet AD8295 (Analog Devices) - 2

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AD8295 TABLE OF CONTENTS
Features .. 1  System .. 18  Applications ... 1  Theory of Operation .. 19  Connection Diagram ... 1  Uncommitted Op Amps .. 19  General Description ... 1  Instrumentation Amplifier.. 19  Revision History ... 2  Layout .. 20  Specifications ... 3  Input Protection ... 21  Instrumentation Amplifier Specifications, Single-Ended and Input Bias Current Return Path ... 21  Differential Output Configurations ... 3  RF Interference ... 21  Op Amp Specifications .. 5  Differential Output .. 22  Internal Resistor Network ... 6  Applications Information .. 23  Power and Temperature Specifications ... 6  Creating a Reference Voltage at Midscale ... 23  Absolute Maximum Ratings .. 7  High Accuracy G = −1 Configuration with Low-Pass Filter .. 23  Thermal Characteristics .. 7  Two-Pole Sallen-Key Filter .. 24  ESD Caution .. 7  AC-Coupled Instrumentation Amplifier .. 24  Pin Configuration and Function Descriptions ... 8  Driving Differential ADCs .. 25  Typical Performance Characteristics ... 9  Outline Dimensions ... 26  In-Amp .. 9  Ordering Guide .. 26  Op Amps .. 16 
REVISION HISTORY 6/09—Rev. 0 to Rev. A
Changes to General Description Section .. 1 Changes to Table 1 .. 1 Changes to Table 3 .. 5 Added Figure 42, Figure 45, and Figure 46; Renumbered Sequentially ... 16 Added Figure 49 .. 17 Changes to Figure 51 and Figure 52 ... 17 Added Figure 53 and Figure 54... 18 Changes to Figure 59 .. 19 Added Routing and Vias Section .. 20 Updated Outline Dimensions ... 26
10/08—Revision 0: Initial Version
Rev. A | Page 2 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE