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Volterra analysis of the ultra high-speed CMOS switched source follower (SSF) track and hold amplifier (THA) is presented based on a simplified RF model. Approximate expressions for the transfer function, the harmonic equations and third-order intermodulation distortion equation are derived respectively. Simulations based on a commercial available 65 nm CMOS process technology are performed with the...
Amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) distortion are two significant effects in power amplifiers at high output power levels. Traditional measurement of amplitude and phase distortion in RF power amplifiers requires the use of expensive vector network analyzers (VNAs). This paper proposes a low cost and accurate test methodology for AM-AM and AM-PM measurement using distortion-to-amplitude...
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