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LF412CDR 데이터시트(PDF) 2 Page - Texas Instruments |
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LF412CDR 데이터시트(HTML) 2 Page - Texas Instruments |
2 / 8 page LF412C DUAL JFET INPUT OPERATIONAL AMPLIFIER SLOS010B − MARCH 1987 − REVISED AUGUST 1994 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions MIN MAX UNIT Supply voltage, VCC + 3.5 18 V Supply voltage, VCC − − 3.5 −18 V electrical characteristics over operating free-air temperature range, VCC± =±15 V (unless otherwise specified) PARAMETER TEST CONDITIONS TA† MIN TYP MAX UNIT VIO Input offset voltage VIC = 0, RS = 10 kΩ 25 °C 1 3 mV αVIO Average temperature coefficient of input offset voltage VIC = 0, RS = 10 kΩ 10 20‡ µV/°C IIO Input offset current§ VIC = 0 25 °C 25 100 pA IIO Input offset current§ VIC = 0 70 °C 4 nA IIB Input bias current§ VIC = 0 25 °C 50 200 pA IIB Input bias current§ VIC = 0 70 °C 8 nA VICR Common-mode input voltage range ±11 − 11.5 to 14.5 V VOM Maximum peak output voltage swing RL = 10 kΩ ±12 ±13.5 V AVD Large-signal differential voltage VO = ± 10 V, RL = 2 kΩ 25 °C 25 200 V/mV AVD Large-signal differential voltage VO = ± 10 V, RL = 2 kΩ Full range 15 200 V/mV ri Input resistance TA = 25°C 1012 Ω CMRR Common-mode rejection ratio RS ≤ 10 kΩ 70 100 dB kSVR Supply-voltage rejection ratio See Note 2 70 100 dB ICC Supply current 4.5 6.8 mA † Full range is 0°C to 70°C. ‡ At least 90% of the devices meet this limit for αVIO. § Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques must be used that will maintain the junction temperatures as close to the ambient temperature as possible. NOTE 2: Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously. operating characteristics, VCC± = ±15 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO1/VO2 Crosstalk attenuation f = 1 kHz 120 dB SR Slew rate 8 13 V/ µs B1 Unity-gain bandwidth 2.7 3 MHz Vn Equivalent input noise voltage f = 1 kHz, RS = 20 Ω 18 nV/ √Hz In Equivalent input noise current f = 1 kHz 0.01 pA/ √Hz |
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