The paper describes the design and the implementation of a track-and-hold (THA) amplifier suitable for a 14-b, 100 MS/s A/D converter, in 0.18 μm CMOS technology. The THA is based on the flip-around architecture with telescopic cascode OTA. Adequate settling behavior was achieved by means of accurate analysis and design of the boosting amplifier with respect to its impact on the pole-zero placement. A modified bootstrap switch featuring a high linearity and reduced complexity is also presented.
100-MS/s 14-b Track-and-Hold Amplifier in 0.18um CMOS / Vecchi, Davide; Azzolini, Cristiano; Boni, Andrea; F. CHAAHOUB AND L., Crespi. - (2005), pp. 259-262. (Intervento presentato al convegno 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005) [10.1109/ESSCIR.2005.1541609].
100-MS/s 14-b Track-and-Hold Amplifier in 0.18um CMOS
VECCHI, Davide;AZZOLINI, Cristiano;BONI, Andrea;
2005-01-01
Abstract
The paper describes the design and the implementation of a track-and-hold (THA) amplifier suitable for a 14-b, 100 MS/s A/D converter, in 0.18 μm CMOS technology. The THA is based on the flip-around architecture with telescopic cascode OTA. Adequate settling behavior was achieved by means of accurate analysis and design of the boosting amplifier with respect to its impact on the pole-zero placement. A modified bootstrap switch featuring a high linearity and reduced complexity is also presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
