Data SheetAD8571/AD8572/AD8574REVISION HISTORY 6/15—Rev. E to Rev. F9/06—Rev. A to Rev. B Added Patent Note, Note 1... 1 Updated Format ... Universal Change to Input Voltage Parameter, Table 3.. 6 Changes to Table 1 .. 3 Changes to Ordering Guide ... 25 Changes to Table 2 .. 4 Changes to Figure 50 .. 14 2/11—Rev. D to Rev. E Changes to Figure 51 .. 15 Changes to Figure 66 .. 21 Changes to Figure 66 .. 21 Updated Outline Dimensions .. 22 Deleted Figure 69 and SPICE Macro-Model Section ... 17 Changes to Ordering Guide ... 23 Deleted SPICE Macro-Model for the AD857x Section .. 18 6/08—Rev. C to Rev. D Updated Outline Dimensions.. 22 Changes to Figure 19 and Figure 20 ... 8 Changes to Ordering Guide ... 23 Changes to Figure 44 .. 12 7/03—Rev. 0 to Rev. A Changes to Figure 38 .. 13 Renumbered Figures .. Universal Moved Figure 50 and Figure 51 ... 14 Changes to Ordering Guide ... 4 Changes to Figure 66, Precision Current Meter Section, Layout, Change to Figure 15. ... 16 Figure 67, Equation 24, and Figure 68 .. 21 Updated Outline Dimensions.. 19 5/07—Rev. B to Rev. C10/99—Revision 0: Initial Version Changes to Features .. 1 Changes to Table 1 .. 3 Changes to Table 2 .. 4 Changes to Basic Auto-Zero Amplifier Theory Section .. 14 Changes to Figure 50 .. 15 Changes to Figure 55 .. 16 Changes to Figure 66 .. 21 Updated Outline Dimensions .. 22 Rev. F | Page 3 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