登录    注册    忘记密码

详细信息

权电容DAC完全响应分析    

Analysis of Complete Response for Weighted Capacitor DAC

文献类型:期刊文献

中文题名:权电容DAC完全响应分析

英文题名:Analysis of Complete Response for Weighted Capacitor DAC

作者:刘佳[1,2,3];吕彩霞[3];李哲英[3];钮文良[4]

第一作者:刘佳

机构:[1]北京市信息服务工程重点实验室;[2]北京航空航天大学计算机学院;[3]北京联合大学信息学院;[4]北京联合大学应用科技学院

第一机构:北京市信息服务工程重点实验室,北京100101

年份:2016

卷号:0

期号:1

起止页码:128-131

中文期刊名:微电子学

外文期刊名:Microelectronics

收录:CSTPCD;;北大核心:【北大核心2014】;CSCD:【CSCD_E2015_2016】;

基金:北京高等学校青年英才计划项目(YETP1773;YETP1754);北京市信息服务工程重点实验室开放课题资助项目

语种:中文

中文关键词:复频域;D/A转换器;权电容;MOS

外文关键词:Complex frequency domain; DAC; Weighted Capacitor; MOS

摘要:在考虑MOS管开关导通电阻的情况下,对权电容DAC做了复频域分析。分析结果指出,权电容DAC的输出电压信号中仅含有零状态响应,没有零输入响应。在分析中,将每个加权电容-MOS管开关作为一个独立的支路,把二进制数字信号序列作为权电容DAC的输入控制信号,每一个输入数字信号对应于权电容DAC的一个模拟输出电压,且每个输入数字信号保持的时间足以使电路进入稳定状态。由此,建立了一种权电容DAC的完全响应模型,只要二进制数字信号保持的时间足够长,权电容DAC的输出中就不会含有零输入响应分量。这对于分析权电容DAC的各种技术特性具有十分重要的意义。
Considering the gate on resistor of MOS transistor as a switch,the analysis of complex frequency domain(Laplace domain)was done to the weighted capacitor DAC(WCDAC).The analysis results showed that there was only zero-state response(ZSR)and no zero-input response(ZIR)in the output signal of WCDAC.In analysis,each weighted capacitor-MOS transistor was an independent branch.The sequence of binary digital signal was the input control signal of WCDAC,and each input digital signal was corresponding to an analog voltage which was the output of WCDAC.In addition,each digital signal could be kept for a time enough to make WCDAC get into stable state.Following such an idea,the complete response model of WCDAC in Laplace domain had been built.The model showed that there was no ZIR if and only if the time to hold digital signal was long enough.The result meant that it was no necessary to consider the influence of ZIR during analyzing the parameters and performances of WCDAC.

参考文献:

正在载入数据...

版权所有©北京联合大学 重庆维普资讯有限公司 渝B2-20050021-8 
渝公网安备 50019002500408号 违法和不良信息举报中心