100毫秒/秒14b跟踪保持放大器在0.18-/spl μ m CMOS

Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005. Pub Date : 2005-12-05 DOI:10.1109/ESSCIR.2005.1541609

D. Vecchi, C. Azzolini, A. Boni, F. Chaahoub, L. Crespi

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引用次数: 9

摘要

本文介绍了一种适用于14-b、100 MS/s a /D转换器、0.18 /spl mu/m CMOS工艺的跟踪保持放大器的设计与实现。THA是基于可伸缩级联OTA的翻转架构。通过对升压放大器对极-零位置影响的精确分析和设计，获得了充分的沉降性能。提出了一种改进的自举开关，具有高线性度和降低复杂度的特点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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100-MS/s 14-b track-and-hold amplifier in 0.18-/spl mu/m CMOS

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 /spl mu/m 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.

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Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005.

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