The DC-coupled differential input and output of ADL5565. Make any changes source load resistance to the gain formula? Is the Rg = (Rg + Rs/2)? Rs is source differential resistance.
Rg is the gain setting resistor. See Figure 1 in the ADl5565 datasheet. The values of Rg are listed in table 7 on page 18 of the ADL5565 datasheet. The input impedanceof the ADL5565 is as follows: 6 dB gain setting, 200 ohms differential, 12 dB gain setting, 100 ohms differential, 15.5 dB gain setting, 67 ohms differential.
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