전자부품 데이터시트 검색엔진 |
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AD8278ARZ 데이터시트(PDF) 4 Page - Analog Devices |
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AD8278ARZ 데이터시트(HTML) 4 Page - Analog Devices |
4 / 24 page AD8278 Rev. 0 | Page 4 of 24 VS = ±5 V to ±15 V, VREF = 0 V, TA = 25°C, RL = 10 kΩ connected to ground, G = 2 difference amplifier configuration, unless otherwise noted. Table 3. Parameter Conditions G = 2 Unit Grade B Grade A Min Typ Max Min Typ Max INPUT CHARACTERISTICS System Offset1 100 200 100 500 μV vs. Temperature TA = −40°C to +85°C 200 500 μV Average Temperature Coefficient TA = −40°C to +85°C 0.6 2 2 5 μV/°C vs. Power Supply VS = ±5 V to ±18 V 5 10 μV/V Common-Mode Rejection Ratio (RTI) VS = ±15 V, VCM = ±27 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 120 120 kΩ Common Mode 30 30 kΩ DYNAMIC PERFORMANCE Bandwidth 550 550 kHz Slew Rate 1.1 1.4 1.1 1.4 V/μs Settling Time to 0.01% 10 V step on output, CL = 100 pF 10 10 μs Settling Time to 0.001% 11 11 μs GAIN Gain Error 0.005 0.02 0.01 0.05 % Gain Drift TA = −40°C to +85°C 1 5 ppm/° C Gain Nonlinearity VOUT = 20 V p-p 5 10 ppm OUTPUT CHARACTERISTICS Output Voltage Swing4 VS = ±15 V, RL = 10 kΩ TA = −40°C to +85°C −VS + 0.2 +VS − 0.2 −VS + 0.2 +VS − 0.2 V Short-Circuit Current Limit ±15 ±15 mA Capacitive Load Drive 350 350 pF NOISE5 Output Voltage Noise f = 0.1 Hz to 10 Hz 2.8 2.8 μV p-p f = 1 kHz 90 95 90 95 nV/√Hz POWER SUPPLY Supply Current6 200 200 μA vs. Temperature TA = −40°C to +85°C 250 250 μA Operating Voltage Range7 ±2 ±18 ±2 ±18 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 in the The for details. Input Voltage Range ory of Operation 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 20 Figure 23 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. 24 Figure 26 7 Unbalanced dual supplies can be used, such as −VS = −0.5 V and +VS = +2 V. The positive supply rail must be at least 2 V above the negative supply and reference voltage. |
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