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XTR112UA Datasheet(PDF) 2 Page - Texas Instruments |
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XTR112UA Datasheet(HTML) 2 Page - Texas Instruments |
2 / 18 page 2 ® XTR112, XTR114 SPECIFICATIONS At TA = +25°C, V+ = 24V, and TIP29C external transistor, unless otherwise noted. XTR112U XTR112UA XTR114U XTR114UA PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS OUTPUT Output Current Equation A Output Current, Specified Range 4 20 TT mA Over-Scale Limit 24 27 30 TT T mA Under-Scale Limit: XTR112 IREG = 0 0.9 1.3 1.7 TT T mA XTR114 0.6 1 1.4 TT T mA ZERO OUTPUT(1) VIN = 0V, RG = ∞ 4 T mA Initial Error ±5 ±25 T ±50 µA vs Temperature ±0.07 ±0.5 T ±0.9 µA/°C vs Supply Voltage, V+ V+ = 7.5V to 36V 0.04 0.2 TT µA/V vs Common-Mode Voltage VCM = 1.25V to 3.5V(2) 0.02 T µA/V vs VREG Output Current 0.3 T µA/mA Noise: 0.1Hz to 10Hz 0.03 T µAp-p SPAN Span Equation (transconductance) S = 40/RG T A/V Initial Error (3) Full Scale (VIN) = 50mV ±0.05 ±0.2 T ±0.4 % vs Temperature(3) ±3 ±25 TT ppm/ °C Nonlinearity: Ideal Input (4) Full Scale (VIN) = 50mV 0.003 0.01 TT % INPUT(5) Offset Voltage VCM = 2V ±50 ±100 T ±250 µV vs Temperature ±0.4 ±1.5 T ±3 µV/°C vs Supply Voltage, V+ V+ = 7.5V to 36V ±0.3 ±3 TT µV/V vs Common-Mode Voltage, VCM = 1.25V to 3.5V(2) ±10 ±50 T ±100 µV/V RTI (CMRR) Common-Mode Input Range(2) 1.25 3.5 TT V Input Bias Current 525 T 50 nA vs Temperature 20 T pA/ °C Input Offset Current ±0.2 ±3 T ±10 nA vs Temperature 5 T pA/ °C Impedance: Differential 0.1 || 1 T G Ω || pF Common-Mode 5 || 10 T G Ω || pF Noise: 0.1Hz to 10Hz 0.6 T µVp-p CURRENT SOURCES VO = 2V(6) Current: XTR112 250 T µA XTR114 100 T µA Accuracy ±0.05 ±0.2 T ±0.4 % vs Temperature ±15 ±35 T ±75 ppm/ °C vs Power Supply, V+ V+ = 7.5V to 36V ±10 ±25 TT ppm/V Matching ±0.02 ±0.1 T ±0.2 % vs Temperature ±3 ±15 T ±30 ppm/ °C vs Power Supply, V+ V+ = 7.5V to 36V 1 10 TT ppm/V Compliance Voltage, Positive (V+) –3 (V+) –2.5 TT V Negative(2) 0 –0.2 TT V Output Impedance: XTR112 500 T M Ω XTR114 1.2 T G Ω Noise: 0.1Hz to 10Hz: XTR112 0.001 T µAp-p XTR114 0.0004 T µAp-p VREG(2) 5.1 T V Accuracy ±0.02 ±0.1 TT V vs Temperature ±0.2 T mV/ °C vs Supply Voltage, V+ 1 T mV/V Output Current: XTR112 –1, +2.1 T mA XTR114 –1, +2.4 T mA Output Impedance 75 T Ω LINEARIZATION RLIN (internal) 1 T k Ω Accuracy ±0.2 ±0.5 T ±1% vs Temperature ±25 ±100 TT ppm/ °C POWER SUPPLY Specified Voltage +24 T V Operating Voltage Range +7.5 +36 TT V TEMPERATURE RANGE Specification, TMIN to TMAX –40 +85 TT °C Operating /Storage Range –55 +125 TT °C Thermal Resistance, θ JA SO-14 Surface-Mount 100 T °C/W IO = VIN • (40/RG) + 4mA, VIN in Volts, RG in Ω T Specification same as XTR112U, XTR114U. NOTES: (1) Describes accuracy of the 4mA low-scale offset current. Does not include input amplifier effects. Can be trimmed to zero. (2) Voltage measured with respect to IRET pin. (3) Does not include initial error or TCR of gain-setting resistor, RG. (4) Increasing the full-scale input range improves nonlinearity. (5) Does not include Zero Output initial error. (6) Current source output voltage with respect to IRET pin. |
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