ADA4500-2Data SheetParameter SymbolTestConditions/CommentsMinTypMaxUnit NOISE PERFORMANCE Total Harmonic Distortion + Noise THD+N G = 1, f = 20 Hz to 20 kHz, VIN = 1.4 V rms at 1 kHz Bandwidth = 80 kHz 0.0004 % Bandwidth = 500 kHz 0.0008 % Peak-to-Peak Noise en p-p f = 0.1 Hz to 10 Hz 2 μV p-p Voltage Noise Density en f = 1 kHz 14.5 nV/√Hz Current Noise Density in f = 1 kHz <0.5 fA/√Hz Rev. B | Page 6 of 24 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS VSY = 2.7 V ELECTRICAL CHARACTERISTICS VSY = 5.0 V ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION RAIL-TO-RAIL OUTPUT RAIL-TO-RAIL INPUT (RRI) ZERO CROSS-OVER DISTORTION OVERLOAD RECOVERY POWER-ON CURRENT PROFILE APPLICATIONS INFORMATION RESISTANCE AND CAPACITANCE SENSOR CIRCUIT ADAPTIVE SINGLE-ENDED-TO-DIFFERENTIAL SIGNAL CONVERTER The Challenge The Solution OUTLINE DIMENSIONS ORDERING GUIDE