Datasheet LT1991 (Analog Devices) - 3

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
∆G Gain Error VS = ±15V, VOUT = ±10V; RL = 10k G = 1; LT1991A l ±0.04 % G = 1; LT1991 l ±0.08 % G = 3 or 9; LT1991A l ±0.06 % G = 3 or 9; LT1991 l ±0.12 % GNL Gain Nonlinearity VS = ±15V; VOUT = ±10V; RL = 10k l 1 10 ppm ∆G/∆T Gain Drift vs Temperature (Note 6) VS = ±15V; VOUT = ±10V; RL = 10k l 0.3 3 ppm/°C CMRR Common Mode Rejection Ratio, VS = ±15V; VCM = ±15.2V Referred to Inputs (RTI) G = 9; LT1991A l 80 100 dB G = 3; LT1991A l 75 93 dB G = 1; LT1991A l 75 90 dB Any Gain; LT1991 l 60 70 dB VCM Input Voltage Range (Note 7) P1/M1 Inputs VS = ±15V; VREF = 0V l –28 27.6 V VS = 5V, 0V; VREF = 2.5V l –0.5 5.1 V VS = 3V, 0V; VREF = 1.25V l 0.75 2.35 V P1/M1 Inputs, P9/M9 Connected to REF VS = ±15V; VREF = 0V l –60 60 V VS = 5V, 0V; VREF = 2.5V l –14 16.8 V VS = 3V, 0V; VREF = 1.25V l –1.5 7.3 V P3/M3 Inputs VS = ±15V; VREF = 0V l –15.2 15.2 V VS = 5V, 0V; VREF = 2.5V l 0.5 4.2 V VS = 3V, 0V; VREF = 1.25V l 0.95 1.95 V P9/M9 Inputs VS = ±15V; VREF = 0V l –15.2 15.2 V VS = 5V, 0V; VREF = 2.5V l 0.85 3.9 V VS = 3V, 0V; VREF = 1.25V l 1.0 1.9 V VOS Op Amp Offset Voltage (Note 8) LT1991AMS, VS = 5V, 0V 15 50 µV l 135 µV LT1991AMS, VS = ±15V 15 80 µV l 160 µV LT1991MS 25 100 µV l 200 µV LT1991DD 25 150 µV l 250 µV ∆VOS/∆T Op Amp Offset Voltage Drift (Note 6) l 0.3 1 µV/°C IB Op Amp Input Bias Current (Note 11) 2.5 5 nA l 7.5 nA IOS Op Amp Input Offset Current (Note 11) LT1991A 50 500 pA l 750 pA LT1991 50 1000 pA l 1500 pA Op Amp Input Noise Voltage 0.01Hz to 1Hz 0.35 µVP-P 0.01Hz to 1Hz 0.07 µVRMS 0.1Hz to 10Hz 0.25 µVP-P 0.1Hz to 10Hz 0.05 µVRMS en Input Noise Voltage Density G = 1; f = 1kHz 180 nV/√Hz G = 9; f = 1kHz 46 nV/√Hz 1991fh 3 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