Datasheet LT1002 (Analog Devices) - 5

LT1002
W U TYPICAL PERFORMANCE CHARACTERISTICS Distribution of Offset Voltage Drift Distribution of Offset Voltage of with Temperature Distribution of Offset Voltage Individual Amplifiers (Individual Amplifiers) Match Drift with Temperature
100 70 35 V V S = ±15V VS = ±15V S = ±15V TA = 25°C 60 30 80 260 UNITS TESTED 130 UNITS TESTED 574 UNITS TESTED 50 25 60 40 20 30 15 40 NUMBER OF UNITS NUMBER OF UNITS 20 NUMBER OF UNITS 10 20 10 5 0 0 –100 –80 –60 –40 –20 0 20 40 60 80 100 –1.2 –0.8 –0.4 0 +0.4 +0.8 +1.2 –1.2 –0.8 –0.4 0 +0.4 +0.8 +1.2 INPUT OFFSET VOLTAGE (µV) INPUT OFFSET VOLTAGE DRIFT OFFSET VOLTAGE MATCH DRIFT WITH TEMPERATURE (µV/°C) WITH TEMPERATURE (µV/°C) 1002 G01 1002 G02 1002 G03
Offset Voltage Drift with Temperature Offset Voltage Tracking with Temperature of Six Representative Units of Six Representative Units Warm-Up Drift
100 5 µV) 100 VS = ±15V VS = ±15V 80 80 TA = 25°C 60 60 LT1002M 4 LT1002M µV) LT1002AM N14 PLASTIC PACKGE 40 40 LT1002AM LT1002AM LT1002AM 20 20 3 0 0 J14 HERMETIC DIP PACKGE LT1002AM LT1002M –20 –20 2 LT1002AM LT1002M –40 –40 LT1002M LT1002M –60 –60 1 OFFSET VOLTAGE MATCH ( –80 –80 CHANGE IN OFFSET VOLTAGE (MICROVOLTS) INDIVIDUAL AMPLIFIER OFFSET VOLTAGE ( –100 –100 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 TEMPERATURE (°C) TEMPERATURE (°C) TIME AFTER POWER ON – BOTH AMPLIFIERS (MINUTES) 1002 G04 1002 G04 1002 G06
Long Term Stability of Four Representative Units 0.1Hz to 10Hz Noise Noise Spectrum
10 100 10 TA = 25°C VS = ±3 TO ±18V µV) 5 30 3 √Hz 1/f CORNER √Hz 4Hz VOLTAGE 0 10 1 1/f CORNER –5 VOLTAGE NOISE nV/ NOISE VOLTAGE 100nV/DIV 3 70Hz 0.3 CURRENT NOISE pA/ OFFSET VOLTAGE CHANGE ( CURRENT –10 1 0.1 0 1 2 3 4 5 0 2 4 6 8 10 1 10 100 1000 TIME (MONTHS) TIME (SECONDS) FREQUENCY (Hz) 1001 G07 1002 G09 1001 G08 1002fb 5