摘要
本文介绍了一个基于低频小信号检测应用的CMOS放大器的设计.设计基于中芯国际(SMIC)0.18μm CMOS工艺,使用Cadence Spectre进行仿真,结果表明该放大器在3.3V工作电压下实现开环直流增益95dB,单位增益带宽40MHZ,相位裕度670,100kHz工作频率时噪声系数17dB,总谐波失真(THD)-92 dB,功耗为4mW.
The paper introduced a design of CMOS amplifier that is used in small signal testing. The design based on SMIC 0.18μm CMOS process and simulated by Spectre. The simulation results： DC gain is 95dB, unit gain bandwidth is 40MHZ,phase margin is 67^0,noise coefficient with 100KhZ working frequency is 17dB,THD is -92 dB, power consumption is 4mW.
出处
《湖南科技学院学报》
2005年第11期42-45,共4页
Journal of Hunan University of Science and Engineering
基金
湖南科技学院院级课题<新型力热学实验仪器的设计>(院字(2003)81号)。
