【摘要】 提出了一个0.13μm CMOS工艺下的快速稳定的高增益Telescopic放大器的设计。该设计采用了增益提高技术,分析了这种技术的增益模型和频率响应模型。后仿真结果表明,该设计开环直流增益为98 dB,在4.5 ns的建立时间之内达到0.02%的稳定精度,而且没有超调的现象,其等效输入噪声小于4 nV/rtHz,在1.2 V供电下消耗电流2 mA。更多还原

【Abstract】 This paper designs a telescopic OPAMP with gain boosting technique.Based on the gain model and frequency response model,the designed OPAMP has more than 95 dB DC gain,4.5nS settling time achieving 0.02% settling accuracy without any overshooting or slow settling.The input-referred noise is less than 4nV/rtHz and consumes only 2mA with supply voltage of 1.2 V.更多还原