Datasheet LT2078, LT2079 (Analog Devices) - 6

LT2078/LT 2079
W U TYPICAL PERFORMANCE CHARACTERISTICS 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 100 CHANNEL A 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) LT2078/79 • TPC04 LT2078/79 • TPC05 LT2078/79 • TPC06
Long Term Stability of Two 10Hz Voltage Noise Distribution Representative Units (LT2078) Warm-Up Drift
35 15 0.8 T T T A = 25°C, VS = 5V, 0V A = 25°C A = 25°C VCM = 0.1V 0.7 V 30 V S = ±15V S = ±2.5V 10 µV) WARM UP DRIFT µV) 1A 0.6 AT VS = 5V, 0V IS 25 IMMEASURABLY LOW 5 0.5 20 0 0.4 2B 15 0.3 – 5 LT2079 PERCENT OF UNITS 10 1B 0.2 OFFSET VOLTAGE CHANGE ( –10 5 2A CHANGE IN OFFSET VOLTAGE ( LT2078 0.1 0 –15 0 25 30 35 40 0 1 2 3 4 5 0 1 2 3 VOLTAGE NOISE DENSITY (nV/√Hz) TIME (MONTHS) TIME AFTER POWER-ON (MINUTES) LT2078/79 • TPC07 LT2078/79 • TPC08 LT2078/79 • TPC09
Output Saturation vs Temperature Output Voltage Swing vs Minimum Supply Voltage vs Sink Current Load Current
100 1000 V+ V– = 0V ISINK = 2mA 125°C 25°C –0.1V ≤ VCM ≤ 0.4V 0 V+ – 1 –55°C µV) ISINK = 1mA 125°C ISINK = 100µA –100 100 V+ – 2 ISINK = 10µA –200 70°C V 0°C S = 5V, 0V 25°C –55°C ISINK = 1µA –300 NONFUNCTIONAL 10 V– + 2 NO LOAD 125°C INPUT OFFSET VOLTAGE ( SATURATION VOLTAGE (mV) OUTPUT VOLTAGE SWING (V) –400 V– + 1 25°C RL = 5k TO GND –55°C –500 1 V– 0 1 2 3 –50 –25 0 25 50 75 100 125 0.01 0.1 1 10 POSITIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) SOURCING OR SINKING LOAD CURRENT (mA) LT2078/79 • TPC11 LT2078/79 • TPC11.5 LT2078/79 • TPC10 20789fa 6