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ADL8101ACPZN-R7 数据表(PDF) 32 Page - Analog Devices |
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ADL8101ACPZN-R7 数据表(HTML) 32 Page - Analog Devices |
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32 / 35 page ![]() Data Sheet ADL8101 APPLICATIONS INFORMATION analog.com Rev. 0 | 32 of 35 PROVIDING DRAIN BIAS THROUGH THE ACG/ VDD2 PIN An alternative way to bias the ADL8101 is through the ACG/VDD2 pin (Pin 8), which is shown in Figure 125. Because of the voltage drop across the internal bias resistor, a higher VDD is required. If a 715 Ω bias resistor (R2) is used and connected to the 5 V power supply, which results in a total current of 90 mA, a VDD of 8.5 V is recommended. R2 can also be connected to the VDD of 8.5 V. In this case, to set IDQ to 90 mA, use an R2 value of 1350 Ω on RBIAS. Figure 125. Providing Resistive Drain Bias Through the ACG/VDD2 Pin |
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