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LT1991ACMS-TRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LT1991ACMS-TRPBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 28 page LT1991 5 1991fg ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ΔG Gain Error VS = ±15V, VOUT = ±10V; RL = 10k G = 1 G = 3 or 9 l l ±0.08 ±0.12 % % GNL Gain Nonlinearity VS = ±15V; VOUT = ±10V; RL = 10k l 110 ppm ΔG/ΔT Gain Drift vs Temperature (Note 6) VS = ±15V; VOUT = ±10V; RL = 10k l 0.3 3 ppm/°C CMRR Common Mode Rejection Ratio, Referred to Inputs (RTI) VS = ±15V; VCM = ±15.2V G = 9 G = 3 G = 1 l l l 77 70 70 100 93 90 dB dB dB VCM Input Voltage Range (Note 7) P1/M1 Inputs VS = ±15V; VREF = 0V VS = 5V, 0V; VREF = 2.5V VS = 3V, 0V; VREF = 1.25V l l l –28 –0.5 0.75 27.6 5.1 2.35 V V V P1/M1 Inputs, P9/M9 Connected to REF VS = ±15V; VREF = 0V VS = 5V, 0V; VREF = 2.5V VS = 3V, 0V; VREF = 1.25V l l l –60 –14 –1.5 60 16.8 7.3 V V V P3/M3 Inputs VS = ±15V; VREF = 0V VS = 5V, 0V; VREF = 2.5V VS = 3V, 0V; VREF = 1.25V l l l –15.2 0.5 0.95 15.2 4.2 1.95 V V V P9/M9 Inputs VS = ±15V; VREF = 0V VS = 5V, 0V; VREF = 2.5V VS = 3V, 0V; VREF = 1.25V l l l –15.2 0.85 1.0 15.2 3.9 1.9 V V V VOS Op Amp Offset Voltage (Note 8) LT1991MS l 25 100 285 μV μV LT1991DD l 25 150 295 μV μV ΔVOS/ΔT Op Amp Offset Voltage Drift (Note 6) l 0.3 1 μV/°C IB Op Amp Input Bias Current (Note 11) l 2.5 5 25 nA nA IOS Op Amp Input Offset Current (Note 11) l 50 1000 4500 pA pA Op Amp Input Noise Voltage 0.01Hz to 1Hz 0.01Hz to 1Hz 0.1Hz to 10Hz 0.1Hz to 10Hz 0.35 0.07 0.25 0.05 μVP-P μVRMS μVP-P μVRMS en Input Noise Voltage Density G = 1; f = 1kHz G = 9; f = 1kHz 180 46 nV/√Hz nV/√Hz RIN Input Impedance (Note 10) P1 (M1 = Ground) P3 (M3 = Ground) P9 (M9 = Ground) l l l 630 420 350 900 600 500 1170 780 650 kΩ kΩ kΩ M1 (P1 = Ground) M3 (P3 = Ground) M9 (P9 = Ground) l l l 315 105 35 450 150 50 585 195 65 kΩ kΩ kΩ ΔR Resistor Matching (Note 9) 450k Resistors Other Resistors l l 0.02 0.04 0.08 0.12 % % ΔR/ΔT Resistor Temperature Coefficient (Note 6) Resistor Matching Absolute Value l l 0.3 –30 3 ppm/°C ppm/°C The l denotes the specifications which apply over the operating temperature range of –40°C to 125°C for H-grade parts, otherwise specifications are at TA = 25°C. Difference amplifier configuration, VS = 5V, 0V or ±15V; VCM = VREF = half supply, unless otherwise noted. |
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