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In this paper a Track-and-Hold Amplifier (THA), designed in a low cost 0.35µm SiGe 60GHz technology is presented. Thanks to the joint action of a novel input buffer and a suppression feedthrough architecture, it is able to guarantee 62dB Total Harmonic Distortion(THD) up to a frequency of 2.2GHz with 0.9Vp-p differential input at a sampling rate (Fs) of 2.5GS/s. The THA core draws about 145mA from...
The paper describes a Track and Hold Amplifier suitable for high-speed and high resolution applications like Software Defined Radios. Thanks to the adopted techniques to maximize the resolution without reducing the sampling frequency, all the non idealities limiting the equivalent number of bits have been taken into account. In particular a novel technique to reduce the third harmonic distortion has...
In this paper a Track-and-Hold amplifier (THA), designed in a low cost 0.35μm SiGe 60GHz technology, suitable for SDR applications, is presented. With the implementation of a novel input buffer, the circuit shows a 3dB bandwidth of 7GHz and a distortion better than 50dB up to, about, that frequency during Track phase. Simulations show a THD better than 50dB up to a frequency of 5.77GHz at 2GS/s and...
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