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ADA4940-1ARZ-R7 数据表(PDF) 12 Page - Analog Devices |
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ADA4940-1ARZ-R7 数据表(HTML) 12 Page - Analog Devices |
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12 / 32 page ![]() ADA4940-1/ADA4940-2 Data Sheet Rev. B | Page 12 of 32 4 –9 1 10 100 1000 FREQUENCY (MHz) –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 CDIFF = 0pF VOUT = 0.1V p-p CCOM1 = CCOM2 = 2pF CCOM1 = CCOM2 = 0.5pF CCOM1 = CCOM2 = 1pF CCOM1 = CCOM2 = 0pF Figure 19. Small Signal Frequency Response for Various Capacitive Loads (LFCSP) 0.25 –0.25 0.1 1000 1 10 100 FREQUENCY (MHz) –0.20 –0.15 –0.10 –0.05 0 0.05 0.10 0.15 0.20 VOUT, dm = 0.1V p-p G = 2, RL = 200Ω G = 2, RL = 1kΩ G = 1, RL = 200Ω G = 1, RL = 1kΩ Figure 20. 0.1 dB Flatness Small Signal Frequency Response for Various Gains and Loads (LFCSP) 3 –9 1 10 100 1000 FREQUENCY (MHz) –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 VS = ±1.5V VS = ±2.5V VOUT, dm = 0.1V p-p Figure 21. VOCM Small Signal Frequency Response for Various Supplies 4 –9 1 10 100 1000 FREQUENCY (MHz) –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 CCOM1 = CCOM2 = 0pF CCOM1 = CCOM2 = 0.5pF CCOM1 = CCOM2 = 1pF CCOM1 = CCOM2 = 2pF CDIFF = 0pF VOUT = 2V p-p Figure 22. Large Signal Frequency Response for Various Capacitive Loads 0.25 –0.25 0.1 1000 1 10 100 FREQUENCY (MHz) –0.20 –0.15 –0.10 –0.05 0 0.05 0.10 0.15 0.20 VOUT, dm = 2V p-p G = 1, RL = 1kΩ G = 1, RL = 200Ω G = 2, RL = 1kΩ G = 2, RL = 200Ω Figure 23. 0.1 dB Flatness Large Signal Frequency Response for Various Gains and Loads 3 –9 1 10 100 1000 FREQUENCY (MHz) –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 VS = ±1.5V VS = ±2.5V VOUT, dm = 1V p-p Figure 24. VOCM Large Signal Frequency Response for Various Supplies |
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