← 返回 JSSC 论文列表
📄 下载 JSSC 原文 PDF
JSSC 2019第10期Data Converters

EDAC RST is approximately twice as large as EConv because the CDAC skipping algo

本文提出了一种用于补偿电荷损失的简单电源复位电路。
电荷补偿电源复位电路动态比较器CDAC能量消耗
创新点1:采用电源复位电路(Supply RST Circuit)同时补偿QRST电荷损失和DeOLD系统的不可预测复位电荷耗散,解决了传统电荷补偿器设计范围不足的问题(系统创新)
创新点2:通过动态比较器在每次比较后清空残留电荷(CFP电容放电),实现比较器能量消耗的恒定化,消除输入电压依赖性(电路创新)
创新点3:为简化设计,对M位侦测电路和K位精细ADC的DAC切换采用统一规格电荷补偿器,通过补偿平均切换能量降低系统复杂度(方法创新)
创新点4:通过一阶多项式近似EDAC_RST能量曲线(-16X+276.36)·CuV²ref,量化分析电荷补偿需求,为补偿器设计提供理论依据(方法创新)
Abstract
addition, EDAC_RST is still limited by the split- monotonic switching method. In this work, the energy curve of E DAC_RST can be approximated by a first-order polynomial equation EDAC_RST = (−16X+276.36)·Cu V 2 ref. (5) The difference /Delta1EDAC_RST of EDAC_RST from the side code (X = 0) to the middle code ( X = 15) is 240 · Cu V 2 ref . It is difficult to design an effective QRST charge compensator that has such a large compensation range. The large offset term of E DAC_RST is also difficult to