A Gain-Boosted Discrete-Time Charge-Domain FIR LPF with Double-Complementary MOS Parametric Amplifiers

📋 论文概要

本文提出了一种采用双互补MOS参量放大器的增益提升离散时间电荷域FIR低通滤波器，解决了传统电荷域滤波器因复位采样电容导致的信号衰减问题。通过引入参量放大器实现了增益提升，同时保持了FIR滤波特性。

💡 主要创新点

• 首次将双互补MOS参量放大器应用于离散时间电荷域FIR滤波器，实现增益提升而不影响滤波特性。
• 通过参量放大器的电荷放大机制补偿复位操作造成的信号衰减，改善了滤波器噪声性能和动态范围。

🏷 关键词

📄 原文摘要

Discrete-time charge-domain filters with FIR characteristics [1,2] require the resetting of their sampling capacitors for every cycle. However, since this resetting operation attenuates the signal when charge sharing is used for signal transmission at the interstages

👥 作者与机构

Atsushi Yoshizawa, Sachio Iida

Sony, Tokyo, Japan