Research Article Gene Flow and Natural Selection in Oceanic Human Populations, Inferred from Genome-wide SNP Typing
2008
A high frequency monolithic amplifier (100) is provided which can be used, for example, in the PLL prescaler of cellular radio systems. The amplifier (100) amplifies single-ended signals having a frequency in the GHz area. It includes a feedback unit (160) which uses parasitic capacitors. The feedback depends on the frequency and is positive for high frequencies and negative for low frequencies. A high gain can be obtained for high frequencies. A comparative low gain a low frequencies prevents the propagation of noise. The amplifier (100) of the present invention can be cascaded to an, for example, 3 stage amplifier arrangement (300).
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