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LMX321 数据表(PDF) 10 Page - STMicroelectronics |
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LMX321 数据表(HTML) 10 Page - STMicroelectronics |
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10 / 25 page ![]() Electrical characteristics LMX321, LMX358, LMX324 10/25 DocID022943 Rev 3 Figure 8. Voltage gain and phase with Cl = 100 pF Figure 9. Voltage gain and phase with Cl = 200 pF 10k 100k 1M 10M -20 -10 0 10 20 30 40 -270 -225 -180 -135 -90 -45 0 Frequency (Hz) Gain Phase Vcc=5V Vicm=2.5V Rl=50kΩ Cl=100pF Gain=-100 T=125°C T=-40°C T=25°C 10k 100k 1M 10M -20 -10 0 10 20 30 40 -270 -225 -180 -135 -90 -45 0 Frequency (Hz) Gain Phase Vcc=5V Vicm=2.5V Rl=50kΩ Cl=200pF Gain=-100 T=125°C T=-40°C T=25°C Figure 10. Gain margin vs. load capacitor at VCC = 5 V Figure 11. Phase margin vs. load capacitor at VCC = 5 V 100 1000 00 3 55 8 10 10 13 15 15 18 20 20 Rl=100kΩ Vcc=5V Vicm=2.5V Vload=2.5V T=25°C T=125°C T=-40°C Rl=600Ω Load Capacitor (pF) 100 1000 00 10 20 20 30 40 40 50 60 60 70 80 80 90 Rl=100kΩ Vcc=5V Vicm=2.5V Vload=2.5V T=25°C T=125°C T=-40°C Rl=600Ω Load Capacitor (pF) Figure 12. Closed-loop gain in voltage follower configuration for different capacitive loads Figure 13. Phase margin vs. output current at VCC = 5 V 1k 10k 100k 1M 10M -15 -10 -10 -5 00 5 10 10 15 Vcc=5V Vicm=2.5V Rl=10kΩ T=25°C Cl=45pF Cl=1000pF Cl=100pF Cl=200pF Cl=500pF Frequency (Hz) -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 70 80 Sink Source Cl=200pF Cl=100pF Vcc=5V Vicm=2.5V Vload=2.5V Rl=10KΩ T=25°C Output Current (mA) |
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