Datasheet LT1638, LT1639 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | 1.2MHz, 0.4V/µs Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps |
| Pages / Page | 18 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Input Bias Current vs. Supply … |
| File Format / Size | PDF / 263 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Input Bias Current vs. Supply Current vs Supply Voltage. Minimum Supply Voltage
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LT1638/LT1639
TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current vs Supply Current vs Supply Voltage Minimum Supply Voltage Common Mode Voltage
300 400 10000 VS = 5V, 0V 280 300 8000 260 TA = 125°C 6000 200 240 100 220 TA = 25°C 60 TA = –55°C 200 0 T 40 180 A = 25°C –100 TA = –55°C 20 160 TA = 125°C TA = –55°C TA = 125°C –200 INPUT BIAS CURRENT (nA) 0 T 140 A = 25°C –300 –20 SUPPLY CURRENT PER AMPLIFIER (μA) 120 CHANGE IN INPUT OFFSET VOLTAGE (μV) 100 –400 –40 0 5 10 15 20 25 30 35 40 45 0 1 2 3 4 5 4.0 4.4 4.8 5.2 5.6 44 SUPPLY VOLTAGE (V) TOTAL SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (V) 1638/39 G01 1638/39 G02 1638/39 G03
Output Saturation Voltage vs Output Saturation Voltage vs Output Saturation Voltage vs Load Current (Output High) Load Current (Output Low) Input Overdrive
1 1 100 VS = ±2.5V VS = ±2.5V VS = ±2.5V VOD = 30mV VOD = 30mV NO LOAD TA = 125°C OUTPUT HIGH T 0.1 A = 125°C TA = 25°C 0.1 TA = 25°C 10 0.01 OUTPUT LOW TA = –55°C TA = –55°C OUTPUT SATURATION VOLTAGE (V) OUTPUT SATURATION VOLTAGE (V) OUTPUT SATURATION VOLTAGE (mV) 0.01 0.001 1 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 0 10 20 30 40 50 60 70 80 90 100 SOURCING LOAD CURRENT (mA) SINKING LOAD CURRENT (mA) INPUT OVERDRIVE (mV) 1638/39 G04 1638/39 G05 1638/39 G06
Noise Voltage Density vs Input Noise Current Density 0.1Hz to 10Hz Noise Voltage Frequency vs Frequency
4.5 70 ) VS = p2.5 Hz Hz) 4.0 60 3.5 50 3.0 40 2.5 2.0 30 1.5 20 1.0 NOISE VOLTAGE (400nV/DIV) 10 0.5 INPUT NOISE VOLTAGE DENSITY (nV/√ INPUT NOISE CURRENT DENSITY (pA/√ 0 0 0 1 2 3 4 5 6 7 8 9 10 1 10 100 1k 1 10 100 1k TIME (SEC) FREQUENCY (Hz) FREQUENCY (Hz) 1638/39 G09 1638/39 G08 1638/39 G07 16389fg 8
TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current vs Supply Current vs Supply Voltage Minimum Supply Voltage Common Mode Voltage
300 400 10000 VS = 5V, 0V 280 300 8000 260 TA = 125°C 6000 200 240 100 220 TA = 25°C 60 TA = –55°C 200 0 T 40 180 A = 25°C –100 TA = –55°C 20 160 TA = 125°C TA = –55°C TA = 125°C –200 INPUT BIAS CURRENT (nA) 0 T 140 A = 25°C –300 –20 SUPPLY CURRENT PER AMPLIFIER (μA) 120 CHANGE IN INPUT OFFSET VOLTAGE (μV) 100 –400 –40 0 5 10 15 20 25 30 35 40 45 0 1 2 3 4 5 4.0 4.4 4.8 5.2 5.6 44 SUPPLY VOLTAGE (V) TOTAL SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (V) 1638/39 G01 1638/39 G02 1638/39 G03
Output Saturation Voltage vs Output Saturation Voltage vs Output Saturation Voltage vs Load Current (Output High) Load Current (Output Low) Input Overdrive
1 1 100 VS = ±2.5V VS = ±2.5V VS = ±2.5V VOD = 30mV VOD = 30mV NO LOAD TA = 125°C OUTPUT HIGH T 0.1 A = 125°C TA = 25°C 0.1 TA = 25°C 10 0.01 OUTPUT LOW TA = –55°C TA = –55°C OUTPUT SATURATION VOLTAGE (V) OUTPUT SATURATION VOLTAGE (V) OUTPUT SATURATION VOLTAGE (mV) 0.01 0.001 1 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 0 10 20 30 40 50 60 70 80 90 100 SOURCING LOAD CURRENT (mA) SINKING LOAD CURRENT (mA) INPUT OVERDRIVE (mV) 1638/39 G04 1638/39 G05 1638/39 G06
Noise Voltage Density vs Input Noise Current Density 0.1Hz to 10Hz Noise Voltage Frequency vs Frequency
4.5 70 ) VS = p2.5 Hz Hz) 4.0 60 3.5 50 3.0 40 2.5 2.0 30 1.5 20 1.0 NOISE VOLTAGE (400nV/DIV) 10 0.5 INPUT NOISE VOLTAGE DENSITY (nV/√ INPUT NOISE CURRENT DENSITY (pA/√ 0 0 0 1 2 3 4 5 6 7 8 9 10 1 10 100 1k 1 10 100 1k TIME (SEC) FREQUENCY (Hz) FREQUENCY (Hz) 1638/39 G09 1638/39 G08 1638/39 G07 16389fg 8
