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

页码：382 / 386

页数：5

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