LT1789-1/LT1789-10 ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the temperature range of–40°C ≤ TA ≤ 85°C. VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VREF = half supply, unless otherwise noted. (Note 4)LT1789-1LT1789-10SYMBOL PARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS Gain Error (Note 6) G = 1, VO = 0.3V to (+VS) – 1V l 0.30 % VO = 0.3V to (+VS) – 0.5V G = 10 (Note 2) l 0.57 0.35 % G = 100 (Note 2) l 0.59 0.62 % Gain Nonlinearity (Note 6) G = 1, VO = 0.3V to (+VS) – 1V l 250 ppm LT1789-1, VO = 0.3V to (+VS) – 0.5V LT1789-10, VO = 0.3V to 4.7V, VS = 5V (Note 8) G = 10 l 105 150 ppm G = 100 l 160 170 ppm G/T Gain vs Temperature G < 1000 (Notes 2, 3) l 5 50 5 50 ppm/°C VOST Total Input Referred Offset Voltage VOST = VOSI + VOSO/G VOSI Input Offset Voltage G = 1000 l 175 205 µV VOSIH Input Offset Voltage Hysteresis (Notes 3, 5) l 3 10 3 10 µV VOSO Output Offset Voltage G = 1 (LT1789-1), G = 10 (LT1789-10) l 1050 4000 µV VOSOH Output Offset Voltage Hysteresis (Notes 3, 5) l 50 100 300 900 µV VOSI/T Input Offset Voltage Drift (RTI) (Note 3) l 0.2 0.5 0.3 0.7 µV/°C VOSO/T Output Offset Voltage Drift (Note 3) l 1.5 4 7 20 µV/°C IOS Input Offset Current (Note 6) l 5 5 nA IOS/T Input Offset Current Drift l 3 3 pA/°C IB Input Bias Current (Note 6) l 50 50 nA IB/T Input Bias Current Drift l 50 50 pA/°C VCM Input Voltage Range l 0.2 +VS – 1 0.2 +VS – 1.5 V CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6) LT1789-1, VCM = 0.2V to (+VS) – 1V LT1789-10, VCM = 0.2V to (+VS) – 1.5V G = 1 l 75 dB G = 10 l 92 84 dB G = 100, 1000 l 96 94 dB PSRR Power Supply Rejection Ratio VS = 2.5V to 12.5V, VCM = VREF = 1V G = 1 l 86 dB G = 10 l 96 90 dB G = 100, 1000 l 98 98 dB Minimum Supply Voltage l 2.5 2.5 V IS Supply Current (Note 7) l 125 125 µA VOL Output Voltage Swing LOW (Note 7) l 120 130 mV VOH Output Voltage Swing HIGH (Note 7) l +VS – 0.40 +VS – 0.40 V 1789fc 5
