Improved reversed nested Miller frequency compensation technique with voltage buffer and resistor

被引：69
|
作者：
Grasso, Alfio Dario [1 ]
Marano, Davide [1 ]
Palumbo, Gaetano [1 ]
Pennisi, Salvatore [1 ]
机构：
[1] Catania Univ, Dipartimento Ingn Elettr Elettron & Sistemi Elett, Catania, Italy
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2007年 / 54卷 / 05期
关键词：
frequency compensation; operational transconductance amplifier (OTA); reversed nested Miller (RNM);
D O I：
10.1109/TCSII.2007.892217
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：
This brief introduces and develops a novel frequency compensation technique for three-stage operational transconductance amplifiers. The new compensation topology exploits a voltage buffer and a nulling resistor to achieve a double pole-zero cancellation, occurring beyond the gain-bandwidth product. To verify the effectiveness of the compensation scheme, an amplifier has been fabricated in a standard 0.5-mu m CMOS process. Experimental measurements are found to be in good agreement with the theoretical analysis and show an improvement in small-signal and large-signal performances.
引用
收藏
页码：382 / 386
页数：5
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