raja.cedt
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@RFICDUDE, I didn't understand about 6dB signal loss concern here(common for all matched load systems, 50% eff), you can design a source follower with 1/gm=50, this will only require lot of power but still your gain will be close to 1.I don't think you can improve the linearity by adding series resistance, because your are not changing loop gain. In case if you are interested in high linearity better go for multi loop gain source follower aka super source follower, which has higher loop gain. One caution, if you are interested in good reflections over the large signal source follower may not work, due to the variation of gm over the time period.
CML driver (resistive loaded diff pair) with 50ohm load is the best out of though it draws huge power...
@Pravesh Kumar Saini:Your approach works but gain will be 0.5 instead of 1, if so use 25ohm degeneration
Thanks, Raj.
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