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AD8450ASTZ 数据表(PDF) 5 Page - Analog Devices |
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AD8450ASTZ 数据表(HTML) 5 Page - Analog Devices |
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5 / 42 page  AD8450 Data Sheet Rev. B | Page 4 of 41 Parameter Test Conditions/Comments Min Typ Max Unit Small Signal −3 dB Bandwidth Gain = 26 1.5 MHz Gain = 66 630 kHz Gain = 133 330 kHz Gain = 200 220 kHz Slew Rate ΔVISMEA = 10 V 5 V/µs VOLTAGE SENSE PGDA Internal Fixed Gains 0.2, 0.27, 0.4, 0.8 V/V Gain Error VIN = ±10 V ±0.1 % Gain Drift TA = TMIN to TMAX 3 ppm/°C Gain Nonlinearity VBVMEA = ±10 V, RL = 2 kΩ 3 ppm Offset Voltage (RTO) BVREFH and BVREFL pins grounded 500 µV Offset Voltage Drift TA = TMIN to TMAX 4 µV/°C Differential Input Voltage Range Gain = 0.8, VBVN0 = 0 V, VBVREFL = 0 V AVCC = +15 V, AVEE = −15 V −16 +16 V AVCC = +25 V, AVEE = −5 V −4 +29 V Input Common-Mode Voltage Range Gain = 0.8, VBVMEA = 0 V AVCC = +15 V, AVEE = −15 V −27 +27 V AVCC = +25 V, AVEE = −5 V −7 +50 V Differential Input Impedance Gain = 0.2 800 kΩ Gain = 0.27 600 kΩ Gain = 0.4 400 kΩ Gain = 0.8 200 kΩ Input Common-Mode Impedance Gain = 0.2 240 kΩ Gain = 0.27 190 kΩ Gain = 0.4 140 kΩ Gain = 0.8 90 kΩ Output Voltage Swing AVEE + 1.5 AVCC − 1.5 V Over Temperature TA = TMIN to TMAX AVEE + 1.7 AVCC − 1.7 V Capacitive Load Drive 1000 pF Short-Circuit Current 30 mA Reference Input Voltage Range BVREFH and BVREFL pins tied together AVEE AVCC V Output Voltage Level Shift BVREFL pin grounded Maximum BVREFH pin connected to VREF pin 4.5 5 5.5 mV Scale Factor VBVMEA/VBVREFH 1.8 2 2.2 mV/V CMRR ΔVCM = 10 V, all fixed gains, RTO 80 dB Temperature Coefficient TA = TMIN to TMAX 0.05 µV/V/°C PSRR ΔVS = 20 V, all fixed gains, RTO 100 dB Output Voltage Noise f = 1 kHz, RTI Gain = 0.2 325 nV/√Hz Gain = 0.27 250 nV/√Hz Gain = 0.4 180 nV/√Hz Gain = 0.8 105 nV/√Hz Voltage Noise, Peak-to-Peak f = 0.1 Hz to 10 Hz, RTI Gain = 0.2 6 µV p-p Gain = 0.27 5 µV p-p Gain = 0.4 3 µV p-p Gain = 0.8 2 µV p-p |
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