Split compensation for inverter-based two-stage amplifier

被引：2
|
作者：
Liao, Pengfei [1 ]
Luo, Ping [1 ]
Li, Hangbiao [1 ]
Zhang, Bo [1 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
来源：
MICROELECTRONICS JOURNAL | 2013年 / 44卷 / 08期
关键词：
Split compensation; Inverter-based; Gain-bandwidth product; EMPLOYING CURRENT-BUFFER; FREQUENCY COMPENSATION; CMOS; RANGE;
D O I：
10.1016/j.mejo.2013.04.012
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：
A split compensation for inverter-based self-biased two-stage amplifier is presented in this paper with detailed quantitative analysis. The conventional miller capacitor is split into two parts to accomplish frequency compensation. With the split compensation, the non-dominant poles and their corresponding Q-values are independent on the parasitic parameter, moreover, this compensation together with inverter-based input stage and the self biased technique improves the performance such as DC gain, gain-bandwidth product, stability and sensitivity. The proposed amplifier has been implemented in a SMIC 0.13 mu m CMOS process and the chip area is 0.10 x 0.14 mm(2). It achieves 10.2-MHz gain-bandwidth product when driving a 20-pF capacitive load dissipating 97.2 mu W power at 1.2 V supply, which shows an improvement in IFOMs and IFOML performance. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：683 / 687
页数：5
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