Datasheet LT2178, LT2179 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 17µA Max, Dual and Quad, Single Supply, Precision Op Amps |
| Pages / Page | 12 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Distribution of Input. Input Bias … |
| File Format / Size | PDF / 215 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Distribution of Input. Input Bias and Offset Currents. Offset Voltage
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LT2178/LT2179
TYPICAL PERFORMANCE CHARACTERISTICS Distribution of Input Input Bias and Offset Currents Offset Voltage Minimum Supply Voltage vs Temperature
800 100 100 VS = 5V, 0V V– = 0V VS = 5V, 0V TA = 25°C 75 2500 OP AMPS 0 600 TESTED IOS 50 –100 INPUT OFFSET CURRENT (pA) 85°C 25 400 –200 25°C –2.5 –40°C –300 NUMBER OF OP AMPS 200 –3.0 I OFFSET VOLTAGE SHIFT (μV) NONFUCTIONAL B –400 –3.5 INPUT BIAS CURRENT (nA) 0 –500 –4.0 –150 –100 –50 0 50 100 150 0 1 2 3 –50 –25 0 25 50 75 100 OFFSET VOLTAGE (μV) POSITIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) 21789 G01 21789 G02 21789 G03
Output Saturation vs Temperature vs Sink Current Short-Circuit Current 0.1Hz to 10Hz Noise
1000 20 VS = 5V, 0V TA = 25°C, VS = p2.5V ISINK = 1mA VS = p15V ISINK = 100μA 10 100 SOURCING VS = p2.5V VS = 5V, 0V 0 I CHANNEL A SINK = 1μA 10 VS = p2.5V NO LOAD –10 10k TO GROUND 1 SATURATION VOLTAGE (mV) V NOISE VOLTAGE (0.4μV/DIV) SHORT CIRCUIT CURRENT (mA) –20 S = p15V 2k TO GROUND SINKING CHANNEL B 0.1 –30 –50 –25 0 25 50 75 100 0 1 2 0 2 4 6 8 10 12 TEMPERATURE (°C) TIME FROM OUTPUT SHORT TO GROUND (MINUTES) TIME (SECONDS) 21789 G04 21789 G05 21789 G06
0.01Hz to 10Hz Noise Noise Spectrum Voltage Gain vs Frequency
1000 140 TA = 25°C, VS = p2.5V TA = 25°C TA = 25°C VS = p2.5V 120 Hz) Hz) 300 100 Y (nV Y (fA CURRENT NOISE 80 VS = p15V CHANNEL A 100 60 VS = 5V, 0V VOLTAGE NOISE 40 VOLTAGE GAIN (dB) 30 20 NOISE VOLTAGE (0.4μV/DIV) TAGE NOISE DENSIT 1/f CORNER VOL CURRENT NOISE DENSIT 0.5Hz 0 CHANNEL B 10 –20 0 20 40 60 80 100 120 0.1 1 10 100 1000 0.001 0.01 0.1 1 10 100 1k 10k 100k 1M TIME (SECONDS) FREQUENCY (Hz) FREQUENCY (Hz) 21789 G07 21789 G08 217879 G09 21789fc 6
TYPICAL PERFORMANCE CHARACTERISTICS Distribution of Input Input Bias and Offset Currents Offset Voltage Minimum Supply Voltage vs Temperature
800 100 100 VS = 5V, 0V V– = 0V VS = 5V, 0V TA = 25°C 75 2500 OP AMPS 0 600 TESTED IOS 50 –100 INPUT OFFSET CURRENT (pA) 85°C 25 400 –200 25°C –2.5 –40°C –300 NUMBER OF OP AMPS 200 –3.0 I OFFSET VOLTAGE SHIFT (μV) NONFUCTIONAL B –400 –3.5 INPUT BIAS CURRENT (nA) 0 –500 –4.0 –150 –100 –50 0 50 100 150 0 1 2 3 –50 –25 0 25 50 75 100 OFFSET VOLTAGE (μV) POSITIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) 21789 G01 21789 G02 21789 G03
Output Saturation vs Temperature vs Sink Current Short-Circuit Current 0.1Hz to 10Hz Noise
1000 20 VS = 5V, 0V TA = 25°C, VS = p2.5V ISINK = 1mA VS = p15V ISINK = 100μA 10 100 SOURCING VS = p2.5V VS = 5V, 0V 0 I CHANNEL A SINK = 1μA 10 VS = p2.5V NO LOAD –10 10k TO GROUND 1 SATURATION VOLTAGE (mV) V NOISE VOLTAGE (0.4μV/DIV) SHORT CIRCUIT CURRENT (mA) –20 S = p15V 2k TO GROUND SINKING CHANNEL B 0.1 –30 –50 –25 0 25 50 75 100 0 1 2 0 2 4 6 8 10 12 TEMPERATURE (°C) TIME FROM OUTPUT SHORT TO GROUND (MINUTES) TIME (SECONDS) 21789 G04 21789 G05 21789 G06
0.01Hz to 10Hz Noise Noise Spectrum Voltage Gain vs Frequency
1000 140 TA = 25°C, VS = p2.5V TA = 25°C TA = 25°C VS = p2.5V 120 Hz) Hz) 300 100 Y (nV Y (fA CURRENT NOISE 80 VS = p15V CHANNEL A 100 60 VS = 5V, 0V VOLTAGE NOISE 40 VOLTAGE GAIN (dB) 30 20 NOISE VOLTAGE (0.4μV/DIV) TAGE NOISE DENSIT 1/f CORNER VOL CURRENT NOISE DENSIT 0.5Hz 0 CHANNEL B 10 –20 0 20 40 60 80 100 120 0.1 1 10 100 1000 0.001 0.01 0.1 1 10 100 1k 10k 100k 1M TIME (SECONDS) FREQUENCY (Hz) FREQUENCY (Hz) 21789 G07 21789 G08 217879 G09 21789fc 6
