Datasheet LT1884, LT1885 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps |
| Pages / Page | 12 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS. CMRR vs Frequency. PSRR vs … |
| File Format / Size | PDF / 173 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. CMRR vs Frequency. PSRR vs Frequency. Vn, In vs Frequency. 0.1Hz to 10Hz Noise
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Text Version of Document
LT1884/LT1885
W U TYPICAL PERFOR A CE CHARACTERISTICS CMRR vs Frequency PSRR vs Frequency Vn, In vs Frequency
140 140 1000 130 130 VS = ±15V 120 120 √Hz) √Hz) 110 110 100 100 NEGATIVE SUPPLY CURRENT NOISE 100 90 90 80 80 70 70 60 60 VOLTAGE NOISE 50 50 POSITIVE SUPPLY 10 40 40 30 30 COMMON MODE REJECTION (dB) SUPPLY POWER REJECTION (dB) 20 20 VOLTAGE NOISE DENSITY (nV/ CURRENT NOISE DENSITY (fA/ 10 10 0 0 1 1 10 100 1k 10k 100k 1M 1 10 100 1k 10k 100k 1M 1 10 100 1000 FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 18845 G09 18845 G07 18845 G08
0.1Hz to 10Hz Noise 0.01Hz to 1Hz Noise Slew Rate vs Temperature
1.4 VS = ±15V VS = ±15V TA = 25°C TA = 25°C RISING 1.2 VS = ±15V µV/DIV) µV/DIV) µs) RISING 1.0 VS = ±5V 0.8 SLEW RATE (V/ FALLING VS = ±15V NOISE VOLTAGE (O.2 NOISE VOLTAGE (O.2 0.6 FALLING VS = ±5V 0.4–50 –30 –10 10 30 50 70 90 110 TIME (2s/DIV) TIME (20s/DIV) TEMPERATURE (°C) 18845 G10 18845 G11 18845 G12
Settling Time to 0.01% Supply Current per Amplifier Input Bias Current vs Output Step vs Supply Voltage vs Common Mode Voltage
10 1.25 1000 VS = ±15V TA = 25°C 8 T 750 A = 85°C 6 1.00 A A V = 1 V = –1 500 4 I + BIAS 250 2 0.75 TA = 25°C I – BIAS 0 0 –2 0.50 TA = –40°C –250 OUTPUT STEP (V) A A V = 1 V = –1 –4 SUPPLY CURRENT (mA) INPUT BIAS CURRENT (pA) –500 –6 0.25 –750 –8 –10 0 –1000 0 2 4 6 8 10 12 14 16 18 20 0 4 8 12 16 20 24 28 32 36 40 –15 –10 –5 0 5 10 15 SETTLING TIME (µs) SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (V) 18845 G13 18845 G14 LTXXXX • TPCXX 7
W U TYPICAL PERFOR A CE CHARACTERISTICS CMRR vs Frequency PSRR vs Frequency Vn, In vs Frequency
140 140 1000 130 130 VS = ±15V 120 120 √Hz) √Hz) 110 110 100 100 NEGATIVE SUPPLY CURRENT NOISE 100 90 90 80 80 70 70 60 60 VOLTAGE NOISE 50 50 POSITIVE SUPPLY 10 40 40 30 30 COMMON MODE REJECTION (dB) SUPPLY POWER REJECTION (dB) 20 20 VOLTAGE NOISE DENSITY (nV/ CURRENT NOISE DENSITY (fA/ 10 10 0 0 1 1 10 100 1k 10k 100k 1M 1 10 100 1k 10k 100k 1M 1 10 100 1000 FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 18845 G09 18845 G07 18845 G08
0.1Hz to 10Hz Noise 0.01Hz to 1Hz Noise Slew Rate vs Temperature
1.4 VS = ±15V VS = ±15V TA = 25°C TA = 25°C RISING 1.2 VS = ±15V µV/DIV) µV/DIV) µs) RISING 1.0 VS = ±5V 0.8 SLEW RATE (V/ FALLING VS = ±15V NOISE VOLTAGE (O.2 NOISE VOLTAGE (O.2 0.6 FALLING VS = ±5V 0.4–50 –30 –10 10 30 50 70 90 110 TIME (2s/DIV) TIME (20s/DIV) TEMPERATURE (°C) 18845 G10 18845 G11 18845 G12
Settling Time to 0.01% Supply Current per Amplifier Input Bias Current vs Output Step vs Supply Voltage vs Common Mode Voltage
10 1.25 1000 VS = ±15V TA = 25°C 8 T 750 A = 85°C 6 1.00 A A V = 1 V = –1 500 4 I + BIAS 250 2 0.75 TA = 25°C I – BIAS 0 0 –2 0.50 TA = –40°C –250 OUTPUT STEP (V) A A V = 1 V = –1 –4 SUPPLY CURRENT (mA) INPUT BIAS CURRENT (pA) –500 –6 0.25 –750 –8 –10 0 –1000 0 2 4 6 8 10 12 14 16 18 20 0 4 8 12 16 20 24 28 32 36 40 –15 –10 –5 0 5 10 15 SETTLING TIME (µs) SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (V) 18845 G13 18845 G14 LTXXXX • TPCXX 7
