Datasheet LT1784 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 2.5MHz, Over-The-Top Low Power, Rail-to-Rail Input and Output Op Amp in SOT-23 |
| 页数 / 页 | 12 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Capacitive Load Handling. … |
| 文件格式/大小 | PDF / 204 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Capacitive Load Handling. Undistorted Output Swing. Total Harmonic Distortion + Noise
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LT1784
TYPICAL PERFORMANCE CHARACTERISTICS Capacitive Load Handling Undistorted Output Swing Total Harmonic Distortion + Noise Overshoot vs Capacitive Load vs Frequency vs Frequency
70 12 0.1 VS = 5V, 0V DISTORTION ≤ 1% RL = 10k V AV = 1 V V 60 CM = 2.5V AV = 1 S = ±5V S = 3V, 0V 10 VOUT = 1.8VP-P ) VCM = 1V 50 P-P 8 0.01 40 AV = 5 6 VS = ±2.5V AV = –1 30 OVERSHOOT (%) A 4 THD + NOISE (%) 0.001 V = 1 20 OUTPUT SWING (V AV = 10 10 2 0 0 0.0001 10 100 1000 1k 10k 100k 1M 10 100 1k 10k 100k CAPACITIVE LOAD (pF) FREQUENCY (Hz) FREQUENCY (Hz) 1784 G22 1784 G23 1784 G24
Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise vs Load Resistance vs Output Voltage Amplitude Open-Loop Gain
1 10 A FREQUENCY = 1kHz V = 1 VS = ±5V V V S = 3V TOTAL CM = HALF SUPPLY VS = ±1.5V V V IN = ±1V IN = 2VP-P AT 1kHz RL = 2k 0.1 1 AV = 1 VS = 3V, 0V RL = 10k 0.01 0.1 AV = –1 R V L = 50k S = 3V, 0V AV = 1 RF = RG = 10k V V S = ±1.5V THD + NOISE (%) S = 3V, 0V THD + NOISE (%) V 0.001 IN = 0.1V TO 2.1V 0.01 AV = –1 VS = ±1.5V RF = RG = 10k INPUT OFFSET VOLTAGE CHANGE (50μV/DIV) 0.0001 0.001 100 1k 10k 100k 0 1 2 3 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 OUTPUT VOLTAGE AMPLITUDE (VP-P) OUTPUT VOLTAGE (V) LOAD RESISTANCE TO GROUND (Ω) 1784 G26 1784 G25 1784 G27
Supply Current vs SHDN Pin Voltage Large Signal Response Small Signal Response
600 VS = 5V, 0V 550 TA = 125°C 500 450 TA = 25°C 400 TA = –55°C 350 2V/DIV 20mV/DIV 300 250 200 SUPPLY CURRENT (μA) 150 100 VS = ±5V 5μs/DIV 1784 G29 VS = ±5V 2μs/DIV 1784 G30 50 AV = 1 AV = 1 0 CL = 15pF CL = 15pF 0 0.5 1 1.5 2 2.5 SHUTDOWN PIN VOLTAGE (V) 1784 G28 1784fa 8
TYPICAL PERFORMANCE CHARACTERISTICS Capacitive Load Handling Undistorted Output Swing Total Harmonic Distortion + Noise Overshoot vs Capacitive Load vs Frequency vs Frequency
70 12 0.1 VS = 5V, 0V DISTORTION ≤ 1% RL = 10k V AV = 1 V V 60 CM = 2.5V AV = 1 S = ±5V S = 3V, 0V 10 VOUT = 1.8VP-P ) VCM = 1V 50 P-P 8 0.01 40 AV = 5 6 VS = ±2.5V AV = –1 30 OVERSHOOT (%) A 4 THD + NOISE (%) 0.001 V = 1 20 OUTPUT SWING (V AV = 10 10 2 0 0 0.0001 10 100 1000 1k 10k 100k 1M 10 100 1k 10k 100k CAPACITIVE LOAD (pF) FREQUENCY (Hz) FREQUENCY (Hz) 1784 G22 1784 G23 1784 G24
Total Harmonic Distortion + Noise Total Harmonic Distortion + Noise vs Load Resistance vs Output Voltage Amplitude Open-Loop Gain
1 10 A FREQUENCY = 1kHz V = 1 VS = ±5V V V S = 3V TOTAL CM = HALF SUPPLY VS = ±1.5V V V IN = ±1V IN = 2VP-P AT 1kHz RL = 2k 0.1 1 AV = 1 VS = 3V, 0V RL = 10k 0.01 0.1 AV = –1 R V L = 50k S = 3V, 0V AV = 1 RF = RG = 10k V V S = ±1.5V THD + NOISE (%) S = 3V, 0V THD + NOISE (%) V 0.001 IN = 0.1V TO 2.1V 0.01 AV = –1 VS = ±1.5V RF = RG = 10k INPUT OFFSET VOLTAGE CHANGE (50μV/DIV) 0.0001 0.001 100 1k 10k 100k 0 1 2 3 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 OUTPUT VOLTAGE AMPLITUDE (VP-P) OUTPUT VOLTAGE (V) LOAD RESISTANCE TO GROUND (Ω) 1784 G26 1784 G25 1784 G27
Supply Current vs SHDN Pin Voltage Large Signal Response Small Signal Response
600 VS = 5V, 0V 550 TA = 125°C 500 450 TA = 25°C 400 TA = –55°C 350 2V/DIV 20mV/DIV 300 250 200 SUPPLY CURRENT (μA) 150 100 VS = ±5V 5μs/DIV 1784 G29 VS = ±5V 2μs/DIV 1784 G30 50 AV = 1 AV = 1 0 CL = 15pF CL = 15pF 0 0.5 1 1.5 2 2.5 SHUTDOWN PIN VOLTAGE (V) 1784 G28 1784fa 8