一种应用于脉冲式激光雷达的模拟存储ADC芯片  

An Analog-Storage Based Analog-to-Digital Converter for Pulsed LiDAR Application

作　　者：曾庆澄 郭建平 陈弟虎 ZENG Qingcheng;GUO Jianping;CHEN Dihu(School of Electronics and Information Technology,Sun Yat-Sen University,Guangzhou 510006,P.R.China)

机构地区：[1]中山大学电子与信息工程学院,广州510006

出　　处：《微电子学》2022年第2期229-235,共7页Microelectronics

基　　金：上海交通大学—西安电子科技大学教育部重点实验室联合基金。

摘　　要：设计了一种应用于脉冲式激光雷达系统中基于模拟存储原理的模数转换器(ADC)芯片。介绍了ADC在激光雷达中的功能原理,设计搭建了高速时序控制电路和模拟存储阵列,并配合设计了低速流水线ADC内核电路和附属的PLL模块。仿真结果表明,该模拟存储ADC电路在激光雷达的具体应用中,可用25 MHz的低速ADC达到1.6 GHz ADC的等效功能。An analog-storage based analog-to-digital converter(ADC)was designed for the applications of pulsed light detection and ranging(LiDAR),where a high speed sequence control logic circuit and an analog-storage array were designed,combined with a low speed pipelined ADC and an accompanied phase-locked-loop(PLL)circuit.The simulation results showed that the proposed analog-storage based ADC could achieve an equivalent performance of 1.6 GHz ADC by a low speed 25 MHz ADC in the actual applications of LiDAR.

关 键 词：激光雷达 高速模拟存储 时序控制 流水线ADC 

分 类 号：TN792[电子电信—电路与系统]