Datasheet ADA4530-1 (Analog Devices) - 2

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ADA4530-1 Data Sheet TABLE OF CONTENTS
Features .. 1 Input Resistance.. 34 Applications ... 1 Input Offset Voltage ... 34 Pin Connection Diagram .. 1 Insulation Resistance ... 34 General Description ... 1 Guarding .. 35 Revision History ... 3 Dielectric Relaxation .. 35 Specifications ... 4 Humidity Effects ... 37 5 V Nominal Electrical Characteristics ... 4 Contamination .. 38 10 V Nominal Electrical Characteristics ... 6 Cleaning and Handling ... 39 15 V Nominal Electrical Characteristics ... 8 Solder Paste Selection .. 39 Absolute Maximum Ratings .. 10 Current Noise Considerations .. 40 Thermal Resistance .. 10 Layout Guidelines ... 43 ESD Caution .. 10 Physical Implementation of Guarding Techniques.. 43 Pin Configuration and Function Descriptions ... 11 Guard Ring .. 43 Typical Performance Characteristics ... 12 Guard Plane ... 43 Main Amplifier, DC Performance .. 12 Via Fence ... 44 Main Amplifier, AC Performance .. 21 Cables and Connectors .. 44 Guard Amplifier ... 27 Electrostatic Interferance .. 44 Theory of Operation .. 29 Photodiode Interface .. 45 ESD Structure .. 29 DC Error Analysis .. 45 Input Stage ... 29 AC Error Analysis .. 45 Gain Stage .. 30 Noise Analysis ... 46 Output Stage .. 30 Design Recommendations .. 47 Guard Buffer ... 30 Design Example .. 47 Applications Information .. 31 Power Supply Recommendations ... 50 Input Protection .. 31 Power Supply Considerations ... 50 Single-Supply and Rail-to-Rail Output ... 31 Long-Term Drift ... 51 Capacitive Load Stability ... 31 Temperature Hysteresis ... 51 EMI Rejection Ratio ... 32 Outline Dimensions ... 52 High Impedance Measurements ... 33 Ordering Guide .. 52 Input Bias Current .. 33 Rev. B | Page 2 of 52 Document Outline FEATURES APPLICATIONS PIN CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS 5 V NOMINAL ELECTRICAL CHARACTERISTICS 10 V NOMINAL ELECTRICAL CHARACTERISTICS 15 V NOMINAL ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS MAIN AMPLIFIER, DC PERFORMANCE MAIN AMPLIFIER, AC PERFORMANCE GUARD AMPLIFIER THEORY OF OPERATION ESD STRUCTURE INPUT STAGE GAIN STAGE OUTPUT STAGE GUARD BUFFER APPLICATIONS INFORMATION INPUT PROTECTION SINGLE-SUPPLY AND RAIL-TO-RAIL OUTPUT CAPACITIVE LOAD STABILITY EMI REJECTION RATIO HIGH IMPEDANCE MEASUREMENTS INPUT BIAS CURRENT INPUT RESISTANCE INPUT OFFSET VOLTAGE INSULATION RESISTANCE GUARDING DIELECTRIC RELAXATION HUMIDITY EFFECTS CONTAMINATION CLEANING AND HANDLING SOLDER PASTE SELECTION CURRENT NOISE CONSIDERATIONS LAYOUT GUIDELINES PHYSICAL IMPLEMENTATION OF GUARDING TECHNIQUES GUARD RING GUARD PLANE VIA FENCE CABLES AND CONNECTORS ELECTROSTATIC INTERFERANCE PHOTODIODE INTERFACE DC ERROR ANALYSIS AC ERROR ANALYSIS NOISE ANALYSIS DESIGN RECOMMENDATIONS DESIGN EXAMPLE POWER SUPPLY RECOMMENDATIONS POWER SUPPLY CONSIDERATIONS LONG-TERM DRIFT TEMPERATURE HYSTERESIS OUTLINE DIMENSIONS ORDERING GUIDE