link to page 6 link to page 6 AD524AD524A AD524BParameter MinTypMaxMinTypMaxUnit INPUT Input Impedance Differential Resistance 109 109 Ω Differential Capacitance 10 10 pF Common-Mode Resistance 109 109 Ω Common-Mode Capacitance 10 10 pF Input Voltage Range Maximum Differential Input Linear (VDL)2 ±10 ±10 V Maximum Common-Mode Linear (VCM)2 V ⎛ G ⎞ ⎛ G ⎞ 12 V − ⎜ × V12 V − ⎜ × VD ⎟ D ⎟ ⎝ 2 ⎠ ⎝ 2 ⎠ Common-Mode Rejection DC to 60 Hz with 1 kΩ Source Imbalance V G = 1 7075 dB G = 10 9095 dB G = 100 100105 dB G = 1000 110115 dB OUTPUT RATING VOUT, RL = 2 kΩ ±10 ±10 V DYNAMIC RESPONSE Small Signal – 3 dB G = 1 1 1 MHz G = 10 400 400 kHz G = 100 150 150 kHz G = 1000 25 25 kHz Slew Rate 5.0 5.0 V/μs Settling Time to 0.01%, 20 V Step G = 1 to 100 15 15 μs G = 1000 75 75 μs NOISE Voltage Noise, 1 kHz RTI 7 7 nV/√Hz RTO 90 90 nV√Hz RTI, 0.1 Hz to 10 Hz G = 1 15 15 μV p-p G = 10 2 2 μV p-p G = 100, 1000 0.3 0.3 μV p-p Current Noise 0.1 Hz to 10 Hz 60 60 pA p-p SENSE INPUT RIN 20 20 kΩ ± 20% IIN 15 15 μA Voltage Range ±10 ±10 V Gain to Output 1 1 % REFERENCE INPUT RIN 40 40 kΩ ± 20% IIN 15 15 μA Voltage Range ±10 ±10 V Gain to Output 1 1 % Rev. F | Page 4 of 28 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS CONNECTION DIAGRAMS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION INPUT PROTECTION INPUT OFFSET AND OUTPUT OFFSET GAIN INPUT BIAS CURRENTS COMMON-MODE REJECTION GROUNDING SENSE TERMINAL REFERENCE TERMINAL PROGRAMMABLE GAIN AUTOZERO CIRCUITS ERROR BUDGET ANALYSIS OUTLINE DIMENSIONS ORDERING GUIDE