← 返回 JSSC 论文列表JSSC 2009第3期Other0.18μm
A 12 GSamples Double-Switching CMOS THA With 62 dB THD
提出一种双开关CMOS THA设计，通过改进缓冲结构实现62dB THD和12GSamples性能
62dB SFDR/10bit精度@800MHz输入，0.18μm CMOS工艺，3.3V供电
跟踪保持放大器低失真双开关结构跨导线性环奈奎斯特采样
▸采用双开关切换输入缓冲结构消除传统交叉耦合电容技术依赖
▸在0.18μm CMOS工艺中混合使用3.3V/1.8V器件实现高速高动态范围
▸通过级联结构保证1.8V器件在3.3V供电下的安全工作
Abstract
Abstract—Hold-mode feed-through is an important de-
sign problem, which plagues the classical switched-buffer
track-and-hold amplifier (THA) topologies. The cross-cou-
pled capacitor technique is a simple way of reducing hold-mode
feed-through. However, the reduction in hold-mode feed-through
is dependent on the matching between the cross-coupled capaci-
tors and the inherent feed-forward capacitors. A double-switching
switched-buffer THA is proposed, which has a switching input
buffer. The prop