LT1122 ELECTRICALCHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V unless otherwise noted. (Note 2)LT1122CM/DMLT1122AM/BMLT1122CC/DCLT1122AC/BCLT1122CS/DSSYMBOL PARAMETERCONDITIONSMINTYPMAXMINTYPMAX UNITS VOS Input Offset Voltage 120 600 130 900 µV IOS Input Offset Current 4 40 5 50 pA IB Input Bias Current 10 75 12 100 pA Input Resistance Differential 1012 1012 Ω Common Mode VCM = –10V to 8V 1012 1012 Ω VCM = 8V to 11V 1011 1011 Ω Input Capacitance 4 4 pF SR Slew Rate AV = – 1 60 80 50 75 V/µs Settling Time (Note 2) 10V to 0V, – 10V to 0V 100% Tested: A- and C-Grades to 1mV at Sum Node 340 540 350 590 ns B- and D-Grades to 1mV at Sum Node 350 360 ns All Grades to 0.5mV at Sum Node 450 470 ns GBW Gain-Bandwidth Product Power 14 13 MHz Bandwidth VOUT = 20VP-P 1.2 1.1 MHz AVOL Large-Signal Voltage Gain VOUT = ±10V, RL = 2kΩ 180 500 150 450 V/mV VOUT = ±10V, RL = 600Ω 130 250 110 220 V/mV CMRR Common-Mode Rejection Ratio VCM = ±10V 83 99 80 98 dB Input Voltage Range (Note 4) ±10.5 ±11 ±10.5 ±11 V PSRR Power Supply Rejection Ratio VS = ±10V to ±18V 86 103 82 101 dB Input Noise Voltage 0.1Hz to 10Hz 3.0 3.3 µVP-P Input Noise Voltage Density fO = 100Hz 25 27 nV/√Hz fO = 10kHz 14 15 nV/√Hz Input Noise Current Density fO = 100Hz, fO = 10kHz 2 2 fA/√Hz VOUT Output Voltage Swing RL = 2kΩ ±12 ±12.5 ±12 ±12.5 V RL = 600Ω ±11.5 ±12 ±11.5 ±12 V IS Supply Current 7.5 10 7.8 11 mA Minimum Supply Voltage (Note 5) ±5 ±5 V Offset Adjustment Range RPOT ≥ 10k, Wiper to V+ ±4 ±10 ±4 ±10 mV 1122fb For more information www.linear.com/LT1122 3
