Datasheet LT1638, LT1639 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | 1.2MHz, 0.4V/µs Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps |
| Pages / Page | 18 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. Settling Time to 0.1% vs. Capacitive … |
| File Format / Size | PDF / 263 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Settling Time to 0.1% vs. Capacitive Load Handling,. Undistorted Output Swing. Output Step
Model Line for this Datasheet
Text Version of Document
LT1638/LT1639
TYPICAL PERFORMANCE CHARACTERISTICS Settling Time to 0.1% vs Capacitive Load Handling, Undistorted Output Swing Output Step Overshoot vs Capacitive Load vs Frequency
10 100 35 VS = ±15V V DISTORTION ≤ 1% 8 S = 5V, 0V 90 VS = ±15V R A VCM = 2.5V L = 20k V = 1 30 6 80 ISOURCE = 150μA AV = –1 ) 4 70 25 P-P 2 60 20 0 50 AV = 5 15 –2 40 AV = 1 OUTPUT STEP (V) OVERSHOOT (%) –4 30 10 A OUTPUT SWING (V V = –1 AV = 10 –6 20 V A S = ±2.5V V = 1 5 –8 10 –10 0 0 0 5 10 15 20 25 30 35 10 100 1000 10000 0.1 1 10 100 SETTLING TIME (μs) CAPACITIVE LOAD (pF) FREQUENCY (kHz) 1638/39 G21 1638/39 G22 1638/39 G23
Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise vs Frequency vs Load Resistance vs Output Voltage
10 10 10 VS = 3V, 0V VS = 3V TOTAL RL = 10k, f = 1kHz VOUT = 2VP-P AV = 1 VCM = HALF SUPPLY VCM = 1.2V VIN = 2VP-P AT 1kHz AV = –1, VS = ±1.5V 1 RL = 20k 1 1 AV = –1, VS = 3V, 0V AV = 1, VS = ±1.5V VS = ±1.5V AV = 1, VS = 3V, 0V VIN = ±1V 0.1 0.1 0.1 THD + NOISE (%) THD + NOISE (%) VS = 3V, 0V THD + NOISE (%) 0.01 A V V = –1 0.01 IN = 0.5V TO 2.5V 0.01 AV = 1 VS = 3V, 0V VIN = 0.2V TO 2.2V 0.001 0.001 0.001 0.01 0.1 1 10 100 0.1 1 10 100 0 1 2 3 FREQUENCY (kHz) LOAD RESISTANCE TO GROUND (kΩ) OUTPUT VOLTAGE (VP-P) 1638/39 G24 1638/39 G26 1638/39 G25
Open-Loop Gain Large-Signal Response Small-Signal Response
VS = ±15V RL = 2k RL = 10k RL = 50k 1638/39 G28 1638/39 G29 VS = ±15V VS = ±15V AV = 1 AV = 1 CHANGE IN INPUT OFFSET VOLTAGE (50μV/DIV) CL = 15pF –20V –10V 0V 10V 20V OUTPUT VOLTAGE (5V/DIV) 1638/39 G27 16389fg 10
TYPICAL PERFORMANCE CHARACTERISTICS Settling Time to 0.1% vs Capacitive Load Handling, Undistorted Output Swing Output Step Overshoot vs Capacitive Load vs Frequency
10 100 35 VS = ±15V V DISTORTION ≤ 1% 8 S = 5V, 0V 90 VS = ±15V R A VCM = 2.5V L = 20k V = 1 30 6 80 ISOURCE = 150μA AV = –1 ) 4 70 25 P-P 2 60 20 0 50 AV = 5 15 –2 40 AV = 1 OUTPUT STEP (V) OVERSHOOT (%) –4 30 10 A OUTPUT SWING (V V = –1 AV = 10 –6 20 V A S = ±2.5V V = 1 5 –8 10 –10 0 0 0 5 10 15 20 25 30 35 10 100 1000 10000 0.1 1 10 100 SETTLING TIME (μs) CAPACITIVE LOAD (pF) FREQUENCY (kHz) 1638/39 G21 1638/39 G22 1638/39 G23
Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise vs Frequency vs Load Resistance vs Output Voltage
10 10 10 VS = 3V, 0V VS = 3V TOTAL RL = 10k, f = 1kHz VOUT = 2VP-P AV = 1 VCM = HALF SUPPLY VCM = 1.2V VIN = 2VP-P AT 1kHz AV = –1, VS = ±1.5V 1 RL = 20k 1 1 AV = –1, VS = 3V, 0V AV = 1, VS = ±1.5V VS = ±1.5V AV = 1, VS = 3V, 0V VIN = ±1V 0.1 0.1 0.1 THD + NOISE (%) THD + NOISE (%) VS = 3V, 0V THD + NOISE (%) 0.01 A V V = –1 0.01 IN = 0.5V TO 2.5V 0.01 AV = 1 VS = 3V, 0V VIN = 0.2V TO 2.2V 0.001 0.001 0.001 0.01 0.1 1 10 100 0.1 1 10 100 0 1 2 3 FREQUENCY (kHz) LOAD RESISTANCE TO GROUND (kΩ) OUTPUT VOLTAGE (VP-P) 1638/39 G24 1638/39 G26 1638/39 G25
Open-Loop Gain Large-Signal Response Small-Signal Response
VS = ±15V RL = 2k RL = 10k RL = 50k 1638/39 G28 1638/39 G29 VS = ±15V VS = ±15V AV = 1 AV = 1 CHANGE IN INPUT OFFSET VOLTAGE (50μV/DIV) CL = 15pF –20V –10V 0V 10V 20V OUTPUT VOLTAGE (5V/DIV) 1638/39 G27 16389fg 10
