Datasheet AD8571, AD8572, AD8574 (Analog Devices) - 2

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AD8571/AD8572/AD8574 Data Sheet TABLE OF CONTENTS
Features .. 1 Maximizing Performance Through Proper Layout ... 17 Applications ... 1 1/f Noise Characteristics ... 18 General Description ... 1 Random Auto-Zero Correction Eliminates Intermodulation Distortion .. 18 Pin Configurations ... 1 Broadband and External Resistor Noise Considerations .. 19 Revision History ... 3 Output Overdrive Recovery .. 19 Specifications ... 4 Input Overvoltage Protection ... 19 5 V Electrical Characteristics .. 4 Output Phase Reversal ... 19 2.7 V Electrical Characteristics ... 5 Capacitive Load Drive ... 20 Absolute Maximum Ratings .. 6 Power-Up Behavior .. 20 Thermal Characteristics .. 6 Applications Information .. 21 ESD Caution .. 6 5 V Precision Strain Gage Circuit .. 21 Typical Performance Characteristics ... 7 3 V Instrumentation Amplifier .. 21 Functional Description .. 15 High Accuracy Thermocouple Amplifier ... 22 Amplifier Architecture .. 15 Precision Current Meter .. 22 Basic Auto-Zero Amplifier Theory .. 15 Precision Voltage Comparator .. 22 Auto-Zero Phase ... 16 Outline Dimensions ... 23 Amplification Phase ... 16 Ordering Guide .. 25 High Gain, CMRR, and PSRR .. 17 Rev. F | Page 2 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS 5 V ELECTRICAL CHARACTERISTICS 2.7 V ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION AMPLIFIER ARCHITECTURE BASIC AUTO-ZERO AMPLIFIER THEORY AUTO-ZERO PHASE AMPLIFICATION PHASE HIGH GAIN, CMRR, AND PSRR MAXIMIZING PERFORMANCE THROUGH PROPER LAYOUT 1/f NOISE CHARACTERISTICS RANDOM AUTO-ZERO CORRECTION ELIMINATES INTERMODULATION DISTORTION BROADBAND AND EXTERNAL RESISTOR NOISE CONSIDERATIONS OUTPUT OVERDRIVE RECOVERY INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL CAPACITIVE LOAD DRIVE POWER-UP BEHAVIOR APPLICATIONS INFORMATION 5 V PRECISION STRAIN GAGE CIRCUIT 3 V INSTRUMENTATION AMPLIFIER HIGH ACCURACY THERMOCOUPLE AMPLIFIER PRECISION CURRENT METER PRECISION VOLTAGE COMPARATOR OUTLINE DIMENSIONS ORDERING GUIDE