A High Gain Operational Amplifier via an Efficient Conductance Cancellation Technique

被引：0

作者：

Huang, Bin ^{[1
]}

Chen, Degang ^{[1
]}

机构：

[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

来源：

2014 IEEE PROCEEDINGS OF THE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC) | 2014年

关键词：

Conductance cancellation; DC gain; gain enhancement; operational amplifier;

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：

An efficient conductance cancellation method is introduced to achieve high gain operational amplifiers. Without the aid of any tuning circuit, in IBM 130nm CMOS process, the post-layout simulation results show that proposed method is able to maintain a DC gain boost of over 23.2dB under temperatures between -40 degrees C and 80 degrees C, of over 21.1dB under supply voltage between 1.3V and 1.8V, and of over 22.5dB under output voltage swing between 0.1V and 1.3V. The measurement results show that the proposed technique maintains at least 26.4dB DC gain enhancement under output voltage swing between 0.1V and 1.4V, while the power consumption and area overhead of the proposed circuit are respectively less than 2% and 3% of those of the conventional op amps.

引用

页数：4

共 4 条

[1] Robust high-gain amplifier design using dynamical systems and bifurcation theory with digital postprocessing techniques
He, Chengming
Jin, Le
Chen, Degang
Geiger, Randy
[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2007, 54 (05) : 964 - 973
[2] Huang B., 2013, ELECT LETT, V49
[3] Jie Yan, 2001, ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), P228, DOI 10.1109/ISCAS.2001.921832
[4] A high gain CMOS operational amplifier with negative conductance gain enhancement
Yan, J
Geiger, RL
[J]. PROCEEDINGS OF THE IEEE 2002 CUSTOM INTEGRATED CIRCUITS CONFERENCE, 2002, : 337 - 340

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