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.
A 2-GS/s 0.35μm SiGe track-and-hold amplifier with 7-GHz analog bandwidth using a novel input buffer / Cascella, D.; Avitabile, Gianfranco; Cannone, F.; Coviello, G.. - (2011), pp. 113-116. (Intervento presentato al convegno 18th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2011 tenutosi a Beirut, Lebanon nel December 11-14, 2011) [10.1109/ICECS.2011.6122227].
A 2-GS/s 0.35μm SiGe track-and-hold amplifier with 7-GHz analog bandwidth using a novel input buffer
AVITABILE, Gianfranco;Coviello, G.
2011-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
