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AD629 데이터시트(PDF) 6 Page - Analog Devices |
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AD629 데이터시트(HTML) 6 Page - Analog Devices |
6 / 24 page AD8278/AD8279 Rev. C | Page 6 of 24 VS = +2.7 V to <±5 V, VREF = midsupply, TA = 25°C, RL = 10 kΩ connected to midsupply, G = 2 difference amplifier configuration, unless otherwise noted. Table 5. G = 2 Grade B Grade A Parameter Conditions Min Typ Max Min Typ Max Unit INPUT CHARACTERISTICS System Offset1 150 300 150 500 μV Over Temperature TA = −40°C to +85°C 300 500 μV vs. Power Supply VS = ±5 V to ±18 V 5 10 μV/V Average Temperature Coefficient TA = −40°C to +85°C 0.6 2 3 5 μV/°C Common-Mode Rejection Ratio (RTI) VS = 2.7 V, VCM = 0 V to 2.4 V, RS = 0 Ω 86 80 dB VS = ±5 V, VCM = −10 V to +7 V, RS = 0 Ω 86 80 dB Input Voltage Range2 −1.5 (VS + 0.1) +1.5 (VS − 1.5) −1.5 (VS + 0.1) +1.5 (VS − 1.5) V Impedance3 Differential 30 30 kΩ Common Mode 30 30 kΩ DYNAMIC PERFORMANCE Bandwidth 450 450 kHz Slew Rate 1.3 1.3 V/μs Channel Separation f = 1 kHz 130 130 dB Settling Time to 0.01% 2 V step on output, CL = 100 pF, VS = 2.7 V 9 9 μs GAIN Gain Error 0.005 0.02 0.01 0.05 % Gain Drift TA = −40°C to +85°C 1 5 ppm/°C OUTPUT CHARACTERISTICS Output Swing4 RL = 10 kΩ, TA = −40°C to +85°C −VS + 0.1 +VS − 0.15 −VS + 0.1 +VS − 0.15 V Short-Circuit Current Limit ±10 ±10 mA Capacitive Load Drive 200 200 pF NOISE5 Output Voltage Noise f = 0.1 Hz to 10 Hz 2.8 2.8 μV p-p f = 1 kHz 94 100 94 100 nV/√Hz POWER SUPPLY6 AD8278 Supply Current TA = −40°C to +85°C 200 200 μA AD8279 Supply Current TA = −40°C to +85°C 375 375 μA Operating Voltage Range 2.0 36 2.0 36 V TEMPERATURE RANGE Operating Range −40 +125 −40 +125 °C 1 Includes input bias and offset current errors, RTO (referred to output). 2 The input voltage range may also be limited by absolute maximum input voltage or by the output swing. See the section for details. Input Voltage Range 3 Internal resistors are trimmed to be ratio matched and have ±20% absolute accuracy. 4 Output voltage swing varies with supply voltage and temperature. See Figur through for details. e 22 Figure 25 5 Includes amplifier voltage and current noise, as well as noise from internal resistors. 6 Supply current varies with supply voltage and temperature. See Figure and for details. 27 Figure 28 |
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