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ADA4661-2ARMZ-R7 数据表(PDF) 7 Page - Analog Devices |
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ADA4661-2ARMZ-R7 数据表(HTML) 7 Page - Analog Devices |
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7 / 32 page  Data Sheet ADA4661-2 Rev. 0 | Page 7 of 32 ELECTRICAL CHARACTERISTICS—3.0 V OPERATION VSY = 3.0 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified. Table 4. Parameter Symbol Test Conditions/Comments Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage VOS 30 150 µV VCM = VSY/2; −40°C ≤ TA ≤ +125°C 450 µV VCM = 0 V to 3.0 V 300 µV VCM = 0 V to 3.0 V; −40°C ≤ TA ≤ +125°C 600 µV Offset Voltage Drift ΔVOS/ΔT −40°C ≤ TA ≤ +125°C 0.6 3.1 μV/°C Input Bias Current IB 0.15 8 pA −40°C ≤ TA ≤ +85°C 45 pA −40°C ≤ TA ≤ +125°C 650 pA Input Offset Current IOS 11 pA −40°C ≤ TA ≤ +85°C 30 pA −40°C ≤ TA ≤ +125°C 270 pA Input Voltage Range 0 3 V Common-Mode Rejection Ratio CMRR VCM = 0 V to 3.0 V 85 100 dB VCM = 0 V to 3.0 V; −40°C ≤ TA ≤ +125°C 75 dB Large Signal Voltage Gain AVO RL = 100 kΩ, VOUT = 0.5 V to 2.5 V 105 130 dB −40°C ≤ TA ≤ +125°C 105 dB Input Resistance Differential Mode RINDM >10 GΩ Common Mode RINCM >10 GΩ Input Capacitance Differential Mode CINDM 8.5 pF Common Mode CINCM 3 pF OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 10 kΩ to VCM 2.98 2.99 V −40°C ≤ TA ≤ +125°C 2.98 V RL = 1 kΩ to VCM 2.9 2.96 V −40°C ≤ TA ≤ +125°C 2.9 V Output Voltage Low VOL RL = 10 kΩ to VCM 4 8 mV −40°C ≤ TA ≤ +125°C 15 mV RL = 1 kΩ to VCM 25 40 mV −40°C ≤ TA ≤ +125°C 65 mV Continuous Output Current IOUT Dropout voltage = 1 V 30 mA Short-Circuit Current ISC Pulse width = 10 ms; refer to the Maximum Power Dissipation section ±220 mA Closed-Loop Output Impedance ZOUT f = 100 kHz, AV = 1 0.2 Ω POWER SUPPLY Power Supply Rejection Ratio PSRR VSY = 3.0 V to 18 V 120 145 dB −40°C ≤ TA ≤ +125°C 120 dB Supply Current per Amplifier ISY IOUT = 0 mA 615 725 µA −40°C ≤ TA ≤ +125°C 975 µA DYNAMIC PERFORMANCE Slew Rate SR RS = 1 kΩ, RL = 10 kΩ, CL = 10 pF, AV = 1 1.7 V/µs Gain Bandwidth Product GBP VIN = 10 mV p-p, RL = 10 kΩ, CL = 10 pF, AV = 100 4 MHz Unity-Gain Crossover UGC VIN = 10 mV p-p, RL = 10 kΩ, CL = 10 pF, AVO = 1 4 MHz −3 dB Closed-Loop Bandwidth f−3 dB VIN = 10 mV p-p, RL = 10 kΩ, CL = 10 pF, AV = 1 1.7 MHz Phase Margin ΦM VIN = 10 mV p-p, RL = 10 kΩ, CL = 10 pF, AVO = 1 60 Degrees Settling Time to 0.1% tS VIN = 1 V step, RL = 10 kΩ, CL = 10 pF 1.3 µs Channel Separation CS VIN = 2.9 V p-p, f = 10 kHz, RL = 10 kΩ 90 dB |
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