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INA2128U-1K Datasheet(PDF) 3 Page - Texas Instruments |
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INA2128U-1K Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 17 page  INA2128 3 SBOS035A www.ti.com ELECTRICAL CHARACTERISTICS At TA = +25°C, VS = ±15V, RL = 10kΩ, unless otherwise noted. INA2128U INA2128UA PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS INPUT Offset Voltage, RTI Initial TA = +25°C ±10 ±100/G ±50 ±500/G ±25 ±100/G ±125 ±1000/G µV vs Temperature TA = TMIN to TMAX ±0.2 ± 2/G ±0.5 ± 20/G ±0.2 ± 5/G ±1 ± 20/G µV/°C vs Power Supply VS = ±2.25V to ±18V ±0.2 ±20/G ±1 ±100/G ✻ ±2 ±200/G µV/V Long-Term Stability ±0.1 ±3/G ✻ µV/mo Impedance, Differential 1010 || 2 ✻ Ω || pF Common-Mode 1011 || 9 ✻ Ω || pF Common-Mode Voltage Range(1) VO = 0V (V+) – 2 (V+) – 1.4 ✻✻ V (V–) + 2 (V–) + 1.7 ✻✻ V Safe Input Voltage ±40 ✻ V Common-Mode Rejection VCM = ±13V, ∆RS = 1kΩ G=1 80 86 73 ✻ dB G=10 100 106 93 ✻ dB G=100 120 125 110 ✻ dB G=1000 120 130 110 ✻ dB BIAS CURRENT ±2 ±5 ✻ ±10 nA vs Temperature ±30 ✻ pA/ °C Offset Current ±1 ±5 ✻ ±10 nA vs Temperature ±30 ✻ pA/ °C NOISE VOLTAGE, RTI G = 1000, RS = 0Ω f = 10Hz 10 ✻ nV/ √Hz f = 100Hz 8 ✻ nV/ √Hz f = 1kHz 8 ✻ nV/ √Hz fB = 0.1Hz to 10Hz 0.2 ✻ µV PP Noise Current f=10Hz 0.9 ✻ pA/ √Hz f=1kHz 0.3 ✻ pA/ √Hz fB = 0.1Hz to 10Hz 30 ✻ pAPP GAIN Gain Equation 1 + (50k Ω/R G) ✻ V/V Range of Gain 1 10000 ✻✻ V/V Gain Error G=1 ±0.01 ±0.024 ✻ ±0.1 % G=10 ±0.02 ±0.4 ✻ ±0.5 % G=100 ±0.05 ±0.5 ✻ ±0.7 % G=1000 ±0.5 ±1 ✻ ±2% Gain vs Temperature(2) G=1 ±1 ±10 ✻✻ ppm/ °C 50k Ω Resistance(2, 3) ±25 ±100 ✻✻ ppm/ °C Nonlinearity VO = ±13.6V, G=1 ±0.0001 ±0.001 ✻ ±0.002 % of FSR G=10 ±0.0003 ±0.002 ✻ ±0.004 % of FSR G=100 ±0.0005 ±0.002 ✻ ±0.004 % of FSR G=1000 ±0.001 (Note 4) ✻✻ % of FSR OUTPUT Voltage: Positive RL = 10kΩ (V+) – 1.4 (V+) – 0.9 ✻✻ V Negative RL = 10kΩ (V–) + 1.4 (V–) + 0.8 ✻✻ V Load Capacitance Stability 1000 ✻ pF Short-Circuit Current +6/–15 ✻ mA FREQUENCY RESPONSE Bandwidth, –3dB G=1 1.3 ✻ MHz G=10 700 ✻ kHz G=100 200 ✻ kHz G=1000 20 ✻ kHz Slew Rate VO = ±10V, G=10 4 ✻ V/ µs Settling Time, 0.01% G=1 7 ✻ µs G=10 7 ✻ µs G=100 9 ✻ µs G=1000 80 ✻ µs Overload Recovery 50% Overdrive 4 ✻ µs POWER SUPPLY Voltage Range ±2.25 ±15 ±18 ✻✻ ✻ V Current, Total VIN = 0V ±1.4 ±1.5 ✻✻ mA TEMPERATURE RANGE Specification –40 85 ✻✻ °C Operating –40 125 ✻✻ °C θ JA 80 ✻ °C/W ✻ Specification same as INA2128P, U. NOTE: (1) Input common-mode range varies with output voltage—see Electrical Characteristics. (2) Ensured by wafer test. (3) Temperature coefficient of the 50k Ω term in the gain equation. (4) Nonlinearity measurements in G = 1000 are dominated by noise. Typical nonlinearity is ±0.001%. |
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