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LT1991ACDD-TRPBF Datasheet(PDF) 4 Page - Linear Technology |
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LT1991ACDD-TRPBF Datasheet(HTML) 4 Page - Linear Technology |
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4 / 28 page  LT1991 4 1991fg SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS 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, LT1991A Other Resistors, LT1991A 450k Resistors, LT1991 Other Resistors, LT1991 l l l l 0.01 0.02 0.02 0.04 0.04 0.06 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 PSRR Power Supply Rejection Ratio VS = ±1.35V to ±18V (Note 8) l 105 135 dB Minimum Supply Voltage l 2.4 2.7 V VOUT Output Voltage Swing (to Either Rail) No Load VS = 5V, 0V VS = 5V, 0V VS = ±15V l l 40 55 65 110 mV mV mV 1mA Load VS = 5V, 0V VS = 5V, 0V VS = ±15V l l 150 225 275 300 mV mV mV ISC Output Short-Circuit Current (Sourcing) Drive Output Positive; Short Output to Ground l 8 4 12 mA mA Output Short-Circuit Current (Sinking) Drive Output Negative; Short Output to VS or Midsupply l 8 4 21 mA mA BW –3dB Bandwidth G = 1 G = 3 G = 9 110 78 40 kHz kHz kHz GBWP Op Amp Gain Bandwidth Product f = 10kHz 560 kHz tr, tf Rise Time, Fall Time G = 1; 0.1V Step; 10% to 90% G = 9; 0.1V Step; 10% to 90% 3 8 μs μs ts Settling Time to 0.01% G = 1; VS = 5V, 0V; 2V Step G = 1; VS = 5V, 0V; –2V Step G = 1; VS = ±15V, 10V Step G = 1; VS = ±15V, –10V Step 42 48 114 74 μs μs μs μs SR Slew Rate VS = 5V, 0V; VOUT = 1V to 4V VS = ±15V; VOUT = ±10V; VMEAS = ±5V l l 0.06 0.08 0.12 0.12 V/μs V/μs Is Supply Current VS = 5V, 0V l 100 110 150 μA μA VS = ±15V l 130 160 210 μA μA ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the operating temperature range of 0°C to 70°C for C-grade parts and –40°C to 85°C for I-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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