CMOS模拟集成电路设计-ch9运算放大器.ppt

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1、提纲7/3/20222概述7/3/20223概述7/3/20224VO+ 0.1% VOtoutputVOtdtsVO- 0.1% VODVDttinputmaxmax)(tVdttVdSrDD一级运放7/3/20225Vout2VoutM1M2M3M4M5M6M7V+IOVoutVinAmplifying stage)|(OPONmNvrrgA Output stage一级运放7/3/20226)(|)(22OPmPONmNmNvrgrggA 一级运放7/3/20227)(442THGSTHMINMAXVVVVV一级运放7/3/20228mA39MIA3302, 1REFIV5 . 1,to

2、tODVV5 . 0OD9VV3 . 0OD7OD5VVV2 . 0OD3OD1VV一级运放7/3/20229TH1OD1OD9minCM,in,VVVVOD9OD1TH3OD3minb1,VVVVV)(OD7GS5DDmaxb2,VVVV一级运放7/3/202210一级运放7/3/202211一级运放7/3/202212一级运放7/3/2022137/3/20221421vvvAAA增益的提高7/3/202215outmvRGA)(331221OmOOmmvrgrrggA 增益的提高7/3/202216增益的提高7/3/202217共模反馈7/3/2022182/DSSDDRIVCM共模反馈

3、7/3/202219)/()(122112,RRVRVRVoutoutCMout共模反馈7/3/202220)2(1|1287THoutoutoxnonontotVVVLWCRRR8 , 7min,THoutVV共模反馈7/3/202221共模反馈7/3/202222Iss1？共模反馈7/3/202223)2(1|1287THoutoutoxnonontotVVVLWCRRR共模反馈7/3/202224915)/()/(LWLW8716)/()/()/(LWLWLW输入范围限制7/3/202225输入范围限制7/3/202226转换速率7/3/202227maxmax)(tVdttVdSrDD

4、转换速率7/3/202228LssrCIS 转换速率7/3/20222900max000maxcos)(VtVdttVdSr电源抑制7/3/202230)0()0(inddddVVAVAPSRR运放的噪声7/3/202231运放的噪声7/3/20223222 , 128 , 78 , 722 , 1210, 910, 92 , 122 , 110, 922 , 18 , 72 , 12)(2)(2)(23232328mmoxPmmoxNoxNmmmmmnggfCWLKggfCWLKfCWLKgggggkTV运放的噪声7/3/202233小结7/3/202234一级运放设计实例7/3/20223

5、5outmvRgA1LoutdBCR/13THNGSDDinCMVVVV3max,11515min,THNODODGSODinCMVVVVVVLCISR/5totalDDdissIVP一级运放设计实例7/3/202236一级运放设计实例7/3/202237AISRCIL5055AI2005kRCRoutLoutdB318/13AIIIRNNNNout70)(2)(1553 , 17 . 0)/(/505022 . 17 . 055 . 4332333max,LWVAAVVVVVVVGSGSTHNGSDDinCM一级运放设计实例7/3/202238AALWVArrgRgAOOmoutmv50)05. 004. 0(50)/(/1102)|(11242117 . 04 .18/11050212511515min,VAAVVVVVVVODTHNODODGSODinCM2555521ODoxnVLWCI39 结束语结束语