A novel fully-differential class AB folded-cascode OTA

IEICE Electronics Express

Omid Shoaei¹  Mohammad Yavari¹ 

[1] IC Design Lab, ECE Department, University of Tehran

关键词: operational transconductance amplifiers;    switched-capacitor circuits;    class AB operation;   

DOI  :  10.1587/elex.1.358

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)Cited-By(1)This paper presents a new single-stage fully-differential class AB folded-cascode operational transconductance amplifier (OTA) for low-voltage and fast-settling switched-capacitor circuits in pure digital CMOS technology. The proposed OTA employs class AB operation in both the input-stage and output current source transistors resulting in large slew rate, enhanced unity-gain bandwidth and DC gain. The method to build the class AB operation in the output current source transistors is very simple which does not need any extra circuit and power consumption. HSPICE simulation results are presented to show the usefulness of the proposed OTA's structure.

【 授权许可】

Unknown