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LT2178 データシート(PDF) 3 Page - Linear Technology |
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LT2178 データシート(HTML) 3 Page - Linear Technology |
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3 / 12 page  LT2178/LT2179 3 21789fc ELECTRICAL CHARACTERISTICS V S = 5V, 0V, VCM = 0.1V, VO = 1.4V, TA = 25°C, unless otherwise noted. SYMBOL PARAMETER CONDITIONS LT2178AC/LT2178AI LT2179AC LT2178C/LT2178I LT2179C/LT2179I UNITS MIN TYP MAX MIN TYP MAX VOS Input Offset Voltage LT2178 LT2179 30 35 70 100 40 40 120 150 μV μV ΔVOS ΔTime Long Term Input Offset Voltage Stability 0.5 0.6 μV/Mo IOS Input Offset Current 0.05 0.25 0.05 0.35 nA IB Input Bias Current 3 5 3 6 nA en Input Noise Voltage 0.1Hz to 10Hz (Note 2) 0.9 2.0 0.9 μVP-P Input Noise Voltage Density fO = 10Hz (Note 2) fO = 1000Hz (Note 2) 50 49 75 65 50 49 nV√Hz nV√Hz in Input Noise Current 0.1Hz to 10Hz (Note 2) 1.5 2.5 1.5 pAP-P Input Noise Current Density fO = 10Hz (Note 2) fO = 1000Hz 0.03 0.01 0.07 0.03 0.01 pA√Hz pA√Hz Input Resistance Differential Mode Common Mode (Note 3) 0.8 2 12 0.6 2 12 GΩ GΩ Input Voltage Range 3.5 0 3.9 –0.3 3.5 0 3.9 –0.3 V V CMRR Common Mode Rejection Ratio VCM = 0V to 3.5V 93 103 90 102 dB PSRR Power Supply Rejection Ratio VS = 2.2V to 12V 94 104 92 104 dB AVOL Large-Signal Voltage Gain VO = 0.03V to 4V, No Load (Note 3) VO = 0.03V to 3.5V, RL = 50k 140 80 700 200 110 70 700 200 V/mV V/mV Maximum Output Voltage Swing Output Low, No Load Output Low, 2k to GND Output Low, ISINK = 100μA 6.5 0.2 120 9 0.6 160 6.5 0.2 120 9 0.6 160 mV mV mV Output High, No Load Output High, 2k to GND 4.2 3.5 4.4 3.8 4.2 3.5 4.4 3.8 V V SR Slew Rate AV = 1, CL = 10pF (Note 3) 0.013 0.025 0.013 0.025 V/μs GBW Gain Bandwidth Product fO ≤ 5kHz 60 60 kHz IS Supply Current per Amplifier VS = ±1.5V, VO = 0V 13 12 18 17 14 13 21 20 μA μA Channel Separation ΔVIN = 3V, RL = 10k 110 110 dB Minimum Supply Voltage (Note 4) 2 2.2 2 2.2 V SYMBOL PARAMETER CONDITIONS LT2178AI LT2178I/LT2179I UNITS MIN TYP MAX MIN TYP MAX VOS Input Offset Voltage LT2178 LT2179 l l 70 80 270 300 95 100 370 400 μV μV ΔVOS ΔT Input Offset Voltage Drift LT2178 (Note 5) LT2179 l 0.4 0.5 1.8 3 0.5 0.6 2.3 3.5 μV/ºC μV/ºC IOS Input Offset Current l 0.07 0.70 0.1 1 nA IB Input Bias Current l 37 48 nA CMRR Common Mode Rejection Ratio VCM = 0.05V to 3.2V l 86 100 84 98 dB PSRR Power Supply Rejection Ratio VS = 3V to 12V l 88 100 86 100 dB The l denotes the specifications which apply over the full operating temperature range. VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, –40°C ≤ TA ≤ 85°C for I-grades, unless otherwise noted. (Note 6) |
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