Power-Efficient Amplifier Frequency Compensation for Continuous-Time Delta-Sigma Modulators

被引：0
|
作者：
Yoon, Do Yeon [1 ]
Lee, Hae-Seung [1 ]
Gealow, Jeffrey [2 ]
机构：
[1] MIT, EECS, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[2] Media Tek, Woburn, MA 08101 USA
来源：
2013 IEEE 56TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2013年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we present a hybrid operational amplifier (opamp) frequency compensation topology to maximize a unity-gain bandwidth (UGBW) particularly for use in continuous-time delta-sigma modulators (CT Delta Sigma Ms). Unlike well-known existing compensation topologies [1], the proposed compensation technique provides both a maximum UGBW and an adequate phase margin (PM) by appropriate non-dominant pole and zero positions. The proposed topology performance is validated by SPICE simulation using 28nm CMOS device models.
引用
收藏
页码：562 / 565
页数：4
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