LT2178/LT2179 ELECTRICAL CHARACTERISTICSVS = 5V, 0V, VCM = 0.1V, VO = 1.4V, TA = 25°C, unless otherwise noted.LT2178AC/LT2178AILT2178C/LT2178ILT2179ACLT2179C/LT2179ISYMBOL PARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS VOS Input Offset Voltage LT2178 30 70 40 120 μV LT2179 35 100 40 150 μV ΔVOS Long Term Input Offset 0.5 0.6 μV/Mo ΔTime Voltage Stability 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) 50 75 50 nV√Hz fO = 1000Hz (Note 2) 49 65 49 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) 0.03 0.07 0.03 pA√Hz fO = 1000Hz 0.01 0.01 pA√Hz Input Resistance (Note 3) Differential Mode 0.8 2 0.6 2 GΩ Common Mode 12 12 GΩ Input Voltage Range 3.5 3.9 3.5 3.9 V 0 –0.3 0 –0.3 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) 140 700 110 700 V/mV VO = 0.03V to 3.5V, RL = 50k 80 200 70 200 V/mV Maximum Output Voltage Swing Output Low, No Load 6.5 9 6.5 9 mV Output Low, 2k to GND 0.2 0.6 0.2 0.6 mV Output Low, ISINK = 100μA 120 160 120 160 mV Output High, No Load 4.2 4.4 4.2 4.4 V Output High, 2k to GND 3.5 3.8 3.5 3.8 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 Amplifi er 13 18 14 21 μA VS = ±1.5V, VO = 0V 12 17 13 20 μA Channel Separation ΔVIN = 3V, RL = 10k 110 110 dB Minimum Supply Voltage (Note 4) 2 2.2 2 2.2 V The l denotes the specifi cations 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)LT2178AILT2178I/LT2179ISYMBOL PARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS VOS Input Offset Voltage LT2178 l 70 270 95 370 μV LT2179 l 80 300 100 400 μV ΔV l OS Input Offset Voltage Drift LT2178 (Note 5) 0.4 1.8 0.5 2.3 μV/ºC ΔT LT2179 0.5 3 0.6 3.5 μV/ºC IOS Input Offset Current l 0.07 0.70 0.1 1 nA IB Input Bias Current l 3 7 4 8 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 21789fc 3