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AD820 数据表(PDF) 5 Page - Analog Devices |
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AD820 数据表(HTML) 5 Page - Analog Devices |
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5 / 16 page  (VS = 0, 3 volts @ TA = +25 C, VCM = 0 V, VOUT = 0.2 V unless otherwise noted) AD820A-3V Parameter Conditions Min Typ Max Units DC PERFORMANCE Initial Offset 0.2 1 mV Max Offset over Temperature 0.5 1.5 mV Offset Drift 1 µV/°C Input Bias Current VCM = 0 V to +2 V 2 25 pA at TMAX 0.5 5 nA Input Offset Current 220 pA at TMAX 0.5 nA Open-Loop Gain VO = 0.2 V to 2 V RL = 100k 300 1000 V/mV TMIN to TMAX 400 V/mV RL = 10k 60 150 V/mV TMIN to TMAX 80 V/mV RL = 1k 10 30 V/mV TMIN to TMAX 8 V/mV NOISE/HARMONIC PERFORMANCE Input Voltage Noise 0.1 Hz to 10 Hz 2 µV p-p f = 10 Hz 25 nV/ √Hz f = 100 Hz 21 nV/ √Hz f = 1 kHz 16 nV/ √Hz f = 10 kHz 13 nV/ √Hz Input Current Noise 0.1 Hz to 10 Hz 18 fA p-p f = 1 kHz 0.8 fA/ √Hz Harmonic Distortion RL = 10k to 1.5 V f = 10 kHz VO = ± 1.25 V –92 dB DYNAMIC PERFORMANCE Unity Gain Frequency 1.5 MHz Full Power Response VO p-p = 2.5 V 240 kHz Slew Rate 3V/ µs Settling Time to 0.1% V O = 0.2 V to 2.5 V 1 µs to 0.01% 1.4 µs INPUT CHARACTERISTICS Common-Mode Voltage Range 1 –0.2 2 V TMIN to TMAX –0.2 2 V CMRR VCM = 0 V to +1 V 60 74 dB TMIN to TMAX 60 dB Input Impedance Differential 10 13 0.5 Ω pF Common Mode 10 13 2.8 Ω pF OUTPUT CHARACTERISTICS Output Saturation Voltage 2 VOL–VEE ISINK = 20 µA5 7 mV TMIN to TMAX 10 mV VCC–VOH ISOURCE = 20 µA10 14 mV TMIN to TMAX 20 mV VOL–VEE ISINK = 2 mA 40 55 mV TMIN to TMAX 80 mV VCC–VOH ISOURCE = 2 mA 80 110 mV TMIN to TMAX 160 mV VOL–VEE ISINK = 10 mA 200 400 mV TMIN to TMAX 400 mV VCC–VOH ISOURCE = 10 mA 500 1000 mV TMIN to TMAX 1000 mV Operating Output Current 15 mA TMIN to TMAX 12 mA Short Circuit Current 18 25 mA TMIN to TMAX 15 mA Capacitive Load Drive 350 pF POWER SUPPLY Quiescent Current T MIN to TMAX 620 800 µA Power Supply Rejection V S+ = 3 V to 15 V 70 80 dB T MIN to TMAX 70 dB AD820 REV. B –5– |
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