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LOG101AID Datasheet(PDF) 3 Page - Texas Instruments |
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LOG101AID Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 16 page  www.ti.com LOG101 3 SBOS242B TOTAL ERROR(4)(5) I1 or I2 remains fixed while other varies. Initial Min to Max I1 or I2 = 3.5mA ±75 mV I1 or I2 = 1mA ±20 mV I1 or I2 = 100µA ±20 mV I1 or I2 = 10µA ±20 mV I1 or I2 = 1µA ±20 mV I1 or I2 = 100nA ±20 mV I1 or I2 = 10nA ±20 mV I1 or I2 = 1nA ±20 mV I1 or I2 = 350pA ±20 mV I1 or I2 = 100pA ±20 mV vs Temperature I1 or I2 = 3.5mA ±1.2 mV/ °C I1 or I2 = 1mA ±0.4 mV/ °C I1 or I2 = 100µA ±0.1 mV/ °C I1 or I2 = 10µA ±0.05 mV/ °C I1 or I2 = 1µA ±0.05 mV/ °C I1 or I2 = 100nA ±0.09 mV/ °C I1 or I2 = 10nA ±0.2 mV/ °C I1 or I2 = 1nA ±0.3 mV/ °C I1 or I2 = 350pA ±0.1 mV/ °C I1 or I2 = 100pA ±0.3 mV/ °C vs Supply I1 or I2 = 3.5mA ±3.0 mV/ V I1 or I2 = 1mA ±0.1 mV/ V I1 or I2 = 100µA ±0.1 mV/ V I1 or I2 = 10µA ±0.1 mV/ V I1 or I2 = 1µA ±0.1 mV/ V I1 or I2 = 100nA ±0.1 mV/ V I1 or I2 = 10nA ±0.1 mV/ V I1 or I2 = 1nA ±0.25 mV/V I1 or I2 = 350pA ±0.1 mV/ V I1 or I2 = 100pA ±0.1 mV/ V FREQUENCY RESPONSE, CORE LOG(6) BW, 3dB I2 = 10nA CC = 4500pF 0.1 kHz I2 = 1µACC = 150pF 38 kHz I2 = 10µACC = 150pF 40 kHz I2 = 1mA CC = 50pF 45 kHz Step Response Increasing I2 = 1µA to 1mA CC = 150pF 11 µs I2 = 100nA to 1µACC = 150pF 7 µs I2 = 10nA to 100nA CC = 150pF 110 µs Decreasing I2 = 1mA to 1µACC = 150pF 45 µs I2 = 1µA to 100nA CC = 150pF 20 µs I2 = 100nA to 10nA CC = 150pF 550 µs POWER SUPPLY Operating Range VS ±4.5 ±18 V Quiescent Current IO = 0 ±1 ±1.5 mA TEMPERATURE RANGE Specified Range, TMIN to TMAX –575 °C Operating Range –40 85 °C Storage Range –55 125 °C Thermal Resistance, θ JA SO-8 150 °C/W NOTES: (1) Log Conformity Error is peak deviation from the best-fit straight line of VOUT versus log (I1/I2) curve expressed as a percent of peak-to-peak full-scale. (2) May require higher supply for full dynamic range. (3) Output core log function is trimmed to 1V output per decade change of input current. (4) Worst-case Total Error for any ratio of I1/I2 is the largest of the two errors, when I1 and I2 are considered separately. (5) Total I1 + I2 should be kept below 4.5mA on ±5V supply. (6) Bandwidth (3dB) and transient response are a function of both the compensation capacitor and the level of input current. ELECTRICAL CHARACTERISTICS (Cont.) Boldface limits apply over the specified temperature range, TA = –5°C to +75°C. At TA = +25°C, VS = ±5V, and RL = 10kΩ, unless otherwise noted. LOG101AID PARAMETER CONDITION MIN TYP MAX UNITS |
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