前馈
三角积分调变
加法器
电子工程
计算机科学
开关电容器
电容器
放大器
运算放大器
功率(物理)
控制理论(社会学)
工程类
电气工程
CMOS芯片
物理
控制工程
人工智能
控制(管理)
量子力学
电压
作者
Hanyu Wang,Gábor C. Temes
标识
DOI:10.1109/iscas46773.2023.10181444
摘要
This article presents a switched-capacitor feedforward technique to enable passive summation in discrete-time (DT) delta-sigma ADCs with only one feedforward capacitor. The proposed technique leads to higher power efficiency and reduced design effort because the amplifier does not carry the input signal thus has a lower output swing, and the power-hungry active adder is avoided. It applies to all kinds of quantizers such as the noise-shaping (NS) SAR, enabling the use of higher order passive NS quantizers for low power applications.
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