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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LOG114AIRGVR датащи(PDF) 5 Page - Burr-Brown (TI) |
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LOG114AIRGVR датащи(HTML) 5 Page - Burr-Brown (TI) |
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5 / 30 page  LOG114 SBOS301A − MAY 2004 − REVISED MARCH 2007 www.ti.com 5 ELECTRICAL CHARACTERISTICS: VS = +5V Boldface limits apply over the specified temperature range, TA = −5°C to +75°C. All specifications at TA = +25°C, RVLOGOUT = 10kΩ, VCM = +2.5V, unless otherwise noted. LOG114 PARAMETER CONDITIONS MIN TYP MAX UNITS CORE LOG FUNCTION IIN/VOUT Equation VO = (0.375V) Log (I1/I2) + VCM V LOG CONFORMITY ERROR(1) Initial 1nA to 100 µA (5 decades) 0.1 0.25 % 0.009 0.022 dB 100pA to 3.5mA (7.5 decades) 0.9 % 0.08 dB 1mA to 10mA See Typical Characteristics Over Temperature 1nA to 100 µA (5 decades) 0.1 0.4 % 100pA to 3.5mA (7.5 decades) 0.5 % 1mA to 10mA See Typical Characteristics TRANSFER FUNCTION (GAIN)(2) Initial Scaling Factor 10nA to 100 µA 0.375 V/decade Scaling Factor Error 1nA to 100 µA 0.4 ±2.5 % 0.0.35 0.21 dB Over Temperature TMIN to TMAX 0.035 ±3.5 % +15 °C to +50°C 0.7 ±3 % INPUT, A1 and A2 Offset Voltage VOS ±1 ±7 mV vs Temperature dV/dT TMIN to TMAX +30 µV/°C vs Power Supply PSRR VS = +4.5V to +5.5V 300 µV/V Input Bias Current IB ±5 pA vs Temperature TMIN to TMAX Doubles every 10 °C Input Common-Mode Voltage Range VCM (V−)+1.5 to (V+)−1.5 V Voltage Noise en f = 0.1Hz to 10kHz 3 µVrms f = 1kHz 30 nV/ √Hz Current Noise in f = 1kHz 4 fA/ √Hz OUTPUT, A3 (VLOGOUT) Output Offset, VOSO, Initial VOSO ±14 ±65 mV Over Temperature TMIN to TMAX ±18 ±80 mV Full Scale Output (FSO)(3) VS = +5V (V−) + 0.6 (V+) − 0.6 V Gain Bandwidth Product GBW IIN = 1µA 50 MHz Short-Circuit Current ISC ±18 mA Capacitive Load 100 pF OP AMP, A4 and A5 Input Offset Voltage VOS ±250 ±4000 µV vs Temperature dV/dT TMIN to TMAX ±2 µV/°C vs Supply PSRR VS = +4.8V to +5.5V 30 µV/V vs Common-Mode Voltage CMRR 70 dB Input Bias Current IB −1 µA Input Offset Current IOS ±0.05 µA Input Voltage Range (V−) (V+) − 1.5 V Input Noise f = 0.1Hz to 10Hz 1 µVPP f = 1kHz 28 nV/ √Hz Current Noise in 2 pA/ √Hz Open-Loop Voltage Gain AOL 100 dB Gain Bandwidth Product GBW 15 MHz Slew Rate SR 5 V/ µs Settling Time 0.01% tS G = −1, 3V Step, CL = 100pF 1.5 µs Rated Output (V−) + 0.5 (V+) − 0.5 V Short-Circuit Current ISC +4/−10 mA |
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