河北科技大学学报2012，Vol.33Issue(1)：50-55,6.
一种高性能全差分运算放大器的设计
Design of high-performance fully differential operational amplifier
唐心亮 1刘克智 2王林锋3
作者信息
- 1. 河北科技大学人事处,河北石家庄 050018
- 2. 河北工业大学微电子技术与材料研究所,天津300130
- 3. 渤海石油职业学院,河北任丘062550
- 折叠
摘要
Abstract
In this paper, a high gain and high fully differential gain boosted operational fold cascade amplifier is proposed. The amplifier is designed for MDAC of pipelined analog-to-digital converter. Both the main amplifier and the boosted amplifier adopt fully differential fold-cascade structure. The main amplifier uses a switched capacitance common mode feedback circuit to stabilize the output. With 5. 0 V power supply, this circuit is designed in CSMC 0. 5 μm CMOS process. Spectre simulation shows that the whole amplifier has the DC gain of 126. 3 dB and the unity gain bandwidth of 316 MHz under 2 pF single ended load, and the settling time is 4. 3 ns with an accuracy of 0. 01%.关键词
流水线ADC/增益自举/折叠共源共栅/采样电路Key words
Pipelined ADC/ gain-boosted/ fold cascade/ sampling circuit分类
信息技术与安全科学引用本文复制引用
唐心亮,刘克智,王林锋..一种高性能全差分运算放大器的设计[J].河北科技大学学报,2012,33(1):50-55,6.
