Datasheet LT1991 (Analog Devices) - 4

LT1991
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. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
RIN Input Impedance (Note 10) P1 (M1 = Ground) l 630 900 1170 kΩ P3 (M3 = Ground) l 420 600 780 kΩ P9 (M9 = Ground) l 350 500 650 kΩ M1 (P1 = Ground) l 315 450 585 kΩ M3 (P3 = Ground) l 105 150 195 kΩ M9 (P9 = Ground) l 35 50 65 kΩ ∆R Resistor Matching (Note 9) 450k Resistors, LT1991A l 0.01 0.04 % Other Resistors, LT1991A l 0.02 0.06 % 450k Resistors, LT1991 l 0.02 0.08 % Other Resistors, LT1991 l 0.04 0.12 % ∆R/∆T Resistor Temperature Coefficient (Note 6) Resistor Matching l 0.3 3 ppm/°C Absolute Value l –30 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 40 55 mV VS = 5V, 0V l 65 mV VS = ±15V l 110 mV 1mA Load VS = 5V, 0V 150 225 mV VS = 5V, 0V l 275 mV VS = ±15V l 300 mV ISC Output Short-Circuit Current (Sourcing) Drive Output Positive; 8 12 mA Short Output to Ground l 4 mA Output Short-Circuit Current (Sinking) Drive Output Negative; 8 21 mA Short Output to VS or Midsupply l 4 mA BW –3dB Bandwidth G = 1 110 kHz G = 3 78 kHz G = 9 40 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% 3 µs G = 9; 0.1V Step; 10% to 90% 8 µs ts Settling Time to 0.01% G = 1; VS = 5V, 0V; 2V Step 42 µs G = 1; VS = 5V, 0V; –2V Step 48 µs G = 1; VS = ±15V, 10V Step 114 µs G = 1; VS = ±15V, –10V Step 74 µs SR Slew Rate VS = 5V, 0V; VOUT = 1V to 4V l 0.06 0.12 V/µs VS = ±15V; VOUT = ±10V; VMEAS = ±5V l 0.08 0.12 V/µs Is Supply Current VS = 5V, 0V 100 110 µA l 150 µA VS = ±15V 130 160 µA l 210 µA 1991fh 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts