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 a "reconstructed" 3dB full power bandwidth (FPBW) of 5.86GHz. The circuit draws about 220mA from 3.3V supply, considering all the sampling stage, the output buffer and clock driver.
|Titolo:||A 2-GS/s 0.35μm SiGe track-and-hold amplifier with 7-GHz analog bandwidth using a novel input buffer|
|Data di pubblicazione:||2011|
|Nome del convegno:||18th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2011|
|Digital Object Identifier (DOI):||10.1109/ICECS.2011.6122227|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|