Datasheet LT1012A, LT1012 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Picoamp Input Current, Microvolt Offset, Low Noise Op Amp |
| Pages / Page | 20 / 9 — TYPICAL PERFOR A CE CHARACTERISTICS. 0.1Hz to 10Hz Noise. Noise Spectrum. … |
| File Format / Size | PDF / 348 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. 0.1Hz to 10Hz Noise. Noise Spectrum. Total Noise vs Source Resistance
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Text Version of Document
LT1012A/LT1012
W U TYPICAL PERFOR A CE CHARACTERISTICS 0.1Hz to 10Hz Noise Noise Spectrum Total Noise vs Source Resistance
1000 10.0 TA = 25°C TA = 25°C TA = 25°C VS = ±1.2V TO ± 20V VS = ±1.2 TO ±20V VS = ± 1.2V TO ± 20V √Hz) √Hz) AT 10Hz √Hz) AT 1kHz µV/ 100 1.0 CURRENT NOISE R – VOLTAGE NOISE + RS = 2R R 10 1/f CORNER 0.1 2.5Hz AT 10Hz NOISE VOLTAGE 400nV/DIVISION 1/f CORNER VOLTAGE NOISE DENSITY (nV CURRENT NOISE DENSITY (fA TOTAL NOISE DENSITY ( 120Hz AT 1kHz RESISTOR NOISE ONLY 1 0.01 0 2 4 6 8 10 1 10 100 1000 102 103 104 105 106 107 108 TIME (SECONDS) FREQUENCY (Hz) SOURCE RESISTANCE (Ω) LT1012A • TPC10 LT1012A • TPC11 LT1012A • TPC12
Common Mode Rejection vs Power Supply Rejection vs Supply Current vs Supply Voltage Frequency Frequency
500 140 140 120 120 µA) 100 100 NEGATIVE 80 SUPPLY 400 80 25°C 60 125°C 60 POSITIVE SUPPLY SUPPLY CURRENT ( 40 –55°C 20 40 V V COMMON MODE REJECTION RATIO (dB) S = ±15V POWER SUPPLY REJECTION RATIO (dB) S = ±15V TA = 25°C TA = 25°C 300 0 20 0 ± 5 ±10 ±15 ± 20 1 10 100 1k 10k 100k 1M 0.1 1 10 100 1k 10k 100k 1M SUPPLY VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) LT1012A • TPC13 LT1012A • TPC14 LT1012A • TPC15
Voltage Gain vs Frequency Gain, Phase Shift vs Frequency Voltage Gain vs Load Resistance
140 40 100 10M VS = ±15V 120 V0 = ±10V 30 PHASE 120 100 PHASE SHIFT (DEGREES) 3M – 55°C 80 20 140 25°C 60 GAIN 1M 125°C GAIN (dB) 40 10 160 VOLTAGE GAIN VOLTAGE GAIN (dB) PHASE MARGIN 300k 20 = 70°C 0 180 0 VS = ±15V VS = ±15V TA = 25°C TA = 25°C –20 –10 200 100k 0.01 0.1 1 10 100 1k 10k 100k 1M 10M 0.01 0.1 1 10 1 2 5 10 20 FREQUENCY (Hz) FREQUENCY (MHz) LOAD RESISTANCE (kΩ) LT1012A • TPC16 LT1012A • TPC17 LT1012A • TPC18 sn1012 1012afbs 9
W U TYPICAL PERFOR A CE CHARACTERISTICS 0.1Hz to 10Hz Noise Noise Spectrum Total Noise vs Source Resistance
1000 10.0 TA = 25°C TA = 25°C TA = 25°C VS = ±1.2V TO ± 20V VS = ±1.2 TO ±20V VS = ± 1.2V TO ± 20V √Hz) √Hz) AT 10Hz √Hz) AT 1kHz µV/ 100 1.0 CURRENT NOISE R – VOLTAGE NOISE + RS = 2R R 10 1/f CORNER 0.1 2.5Hz AT 10Hz NOISE VOLTAGE 400nV/DIVISION 1/f CORNER VOLTAGE NOISE DENSITY (nV CURRENT NOISE DENSITY (fA TOTAL NOISE DENSITY ( 120Hz AT 1kHz RESISTOR NOISE ONLY 1 0.01 0 2 4 6 8 10 1 10 100 1000 102 103 104 105 106 107 108 TIME (SECONDS) FREQUENCY (Hz) SOURCE RESISTANCE (Ω) LT1012A • TPC10 LT1012A • TPC11 LT1012A • TPC12
Common Mode Rejection vs Power Supply Rejection vs Supply Current vs Supply Voltage Frequency Frequency
500 140 140 120 120 µA) 100 100 NEGATIVE 80 SUPPLY 400 80 25°C 60 125°C 60 POSITIVE SUPPLY SUPPLY CURRENT ( 40 –55°C 20 40 V V COMMON MODE REJECTION RATIO (dB) S = ±15V POWER SUPPLY REJECTION RATIO (dB) S = ±15V TA = 25°C TA = 25°C 300 0 20 0 ± 5 ±10 ±15 ± 20 1 10 100 1k 10k 100k 1M 0.1 1 10 100 1k 10k 100k 1M SUPPLY VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) LT1012A • TPC13 LT1012A • TPC14 LT1012A • TPC15
Voltage Gain vs Frequency Gain, Phase Shift vs Frequency Voltage Gain vs Load Resistance
140 40 100 10M VS = ±15V 120 V0 = ±10V 30 PHASE 120 100 PHASE SHIFT (DEGREES) 3M – 55°C 80 20 140 25°C 60 GAIN 1M 125°C GAIN (dB) 40 10 160 VOLTAGE GAIN VOLTAGE GAIN (dB) PHASE MARGIN 300k 20 = 70°C 0 180 0 VS = ±15V VS = ±15V TA = 25°C TA = 25°C –20 –10 200 100k 0.01 0.1 1 10 100 1k 10k 100k 1M 10M 0.01 0.1 1 10 1 2 5 10 20 FREQUENCY (Hz) FREQUENCY (MHz) LOAD RESISTANCE (kΩ) LT1012A • TPC16 LT1012A • TPC17 LT1012A • TPC18 sn1012 1012afbs 9
