Data SheetADA4638-1SPECIFICATIONS ELECTRICAL CHARACTERISTICS—30 V OPERATION VS = 30 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified. Table 2. Parameter SymbolTestConditions/CommentsMinTypMaxUnit INPUT CHARACTERISTICS Offset Voltage VOS 0.5 4.5 μV −40°C ≤ TA ≤ +125°C; SOIC 12.5 μV −40°C ≤ TA ≤ +125°C; LFCSP 14.5 μV Offset Voltage Drift ΔVOS/ΔT −40°C ≤ TA ≤ +125°C; SOIC 0.08 μV/°C −40°C ≤ TA ≤ +125°C; LFCSP 0.1 μV/°C Input Bias Current IB 45 90 pA −40°C ≤ TA ≤ +125°C 500 pA Input Offset Current IOS 25 105 pA −40°C ≤ TA ≤ +125°C 170 pA Input Voltage Range 0 27 V Common-Mode Rejection Ratio CMRR VCM = 0 V to 27 V 130 142 dB −40°C ≤ TA ≤ +125°C 130 dB Open-Loop Gain AVO RL = 10 kΩ, VO = 1 V to 29 V 140 165 dB −40°C ≤ TA ≤ +125°C 140 dB Input Resistance, Common Mode RINCM 330 GΩ Input Capacitance, Differential Mode CINDM 4 pF Input Capacitance, Common Mode CINCM 9 pF OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 10 kΩ to VCM 29.90 29.92 V −40°C ≤ TA ≤ +125°C 29.85 V RL = 2 kΩ to VCM 29.50 29.58 V −40°C ≤ TA ≤ +125°C 29.35 V Output Voltage Low VOL RL = 10 kΩ to VCM 50 60 mV −40°C ≤ TA ≤ +125°C 95 mV RL = 2 kΩ to VCM 235 270 mV −40°C ≤ TA ≤ +125°C 445 mV Short-Circuit Current ISC ±38 mA Closed-Loop Output Impedance ZOUT f = 1 MHz, AV = +1 220 Ω POWER SUPPLY Power Supply Rejection Ratio PSRR VS = 4.5 V to 30 V 120 143 dB −40°C ≤ TA ≤ +125°C 120 dB Supply Current/Amplifier ISY IO = 0 mA 0.85 1.05 mA −40°C ≤ TA ≤ +125°C 1.25 mA DYNAMIC PERFORMANCE Slew Rate SR RL = 10 kΩ, CL = 20 pF, AV = +1 1.5 V/μs Overload Recovery Time RL = 10 kΩ, CL = 20 pF, AV = −100 8 μs Settling Time to 0.1% tS VIN = 5 V step, RL = 10 kΩ, CL = 20 pF, AV = −1 4 μs Unity-Gain Crossover UGC VIN = 30 mV p-p, RL = 10 kΩ, CL = 20 pF, AV = +1 1.3 MHz Phase Margin ΦM VIN = 30 mV p-p, RL = 10 kΩ, CL = 20 pF, AV = +1 69 Degrees Gain-Bandwidth Product GBP VIN = 30 mV p-p, RL = 10 kΩ, CL = 20 pF, AV = +100 1.5 MHz −3 dB Closed-Loop Bandwidth f−3dB VIN = 30 mV p-p, RL = 10 kΩ, CL = 20 pF, AV = +1 2.5 MHz NOISE PERFORMANCE Voltage Noise en p-p f = 0.1 Hz to 10 Hz 1.2 μV p-p Voltage Noise Density en f = 1 kHz 66 nV/√Hz Current Noise Density in f = 1 kHz 0.1 pA/√Hz Rev. 0 | Page 3 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—30 V OPERATION ELECTRICAL CHARACTERISTICS—10 V OPERATION ELECTRICAL CHARACTERISTICS—5 V OPERATION ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION DIFFERENTIATION THEORY OF OPERATION INPUT PROTECTION NO OUTPUT PHASE REVERSAL NOISE CONSIDERATIONS 1/f Noise COMPARATOR OPERATION PRECISION LOW-SIDE CURRENT SHUNT SENSOR PRINTED CIRCUIT BOARD LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE