Datasheet LT1078, LT1079 (Analog Devices) - 7

LT1078/LT1079
W U TYPICAL PERFORMANCE CHARACTERISTICS Input Bias and Offset Currents Input Bias Current Supply Current vs Temperature vs Temperature vs Common Mode Voltage
55 100 0 V V S = 5V, 0V TO ±15V S = 5V, 0V μA) 50 –2 50 IOS VS = ±15V 45 –4 TA = –55°C 0 T OFFSET CURRENT (pA) A = 25°C 40 –6 TA = 125°C –5 V 35 S = 5V, 0V –8 IB INPUT BIAS CURRENT (nA) –6 30 –10 SUPPLY CURRENT PER AMPLIFIER ( 25 BIAS CURRENT (nA) –7 –12 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –1 0 1 2 3 4 TEMPERATURE (°C) TEMPERATURE (°C) COMMON MODE VOLTAGE (V) LT1078/79 • TPC01 LT1078/79 • TPC02 LT1078/79 • TPC03
0.1Hz to 10Hz Noise 0.01Hz to 10Hz Noise Noise Spectrum
1000 TA = 25°C TA = 25°C TA = 25°C VS = ±2.5V V V CHANNEL A S = ±2.5V S = ±2.5V √Hz) √Hz) (AT VS = ±15V 300 CURRENT VOLTAGE NOISE μV/DIV) μV/DIV) NOISE IS 4% LESS CURRENT NOISE IS UNCHANGED) CHANNEL B CHANNEL A 100 0.4μV VOLTAGE NOISE 30 NOISE VOLTAGE (0.4 NOISE VOLTAGE (0.4 VOLTAGE NOISE DENSITY (nV/ CURRENT NOISE DENSITY (fA/ 1/f CORNER CHANNEL B 0.7Hz 10 0 2 4 6 8 10 0 20 40 60 80 100 0.1 1 10 100 1000 TIME (SEC) TIME (SEC) FREQUENCY (Hz) LT1078/79 • TPC06 LT1078/79 • TPC04 LT1078/79 • TPC05
Distribution of Offset Voltage Drift with Temperature (In All Packages Long Term Stability of Two 10Hz Voltage Noise Distribution Except Surface Mount) Representative Units (LT1078)
35 25 15 T 120 T V A = 25°C, VS = 5V, 0V A = 25°C S = 5V, 0V 109 V 30 V V CM = 0.1V S = ± 2.5V CM = 0.1V 10 329 OP AMPS TESTED 20 120 LT1078'S μV) FROM THREE RUNS 70 LT1079'S 1A 25 89 520 OP AMPS 85 5 106 LT1078'S 15 20 45 LT1079'S 0 2B 15 10 47 44 – 5 PERCENT OF UNITS 10 PERCENT OF UNITS 1B 5 OFFSET VOLTAGE CHANGE ( –10 5 2A 4 1 3 5 7 3 1 1 1 0 –15 0 25 30 35 40 –2 –1 0 1 2 0 1 2 3 4 5 VOLTAGE NOISE DENSITY (nV/√Hz) OFFSET VOLTAGE DRIFT WITH TEMPERATURE ( TIME (MONTHS) μV/°C) LT1078/79 • TPC07 LT1078/79 • TPC08 LT078/79 • TPC09 10789fe 7