| 一种前馈型全摆幅恒跨导准恒增益CMOS运放设计 |
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| 引用本文： | 吴金,周震.一种前馈型全摆幅恒跨导准恒增益CMOS运放设计[J].电路与系统学报,2004,9(3):69-71,79. |
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| 作者姓名： | 吴金 周震 |
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| 作者单位： | 东南大学,微电子中心,江苏,南京,210096 |
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| 摘 要： | 设计了一种适合在低电源电压下工作的前馈型输入级放大结构，在全摆幅的动态工作范围内，输入级跨导保持不变，采用负载电流补偿以保证增益近似恒定，输出采用前馈型AB类输结构，实现全摆幅输出。
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| 关 键 词： | 运放 恒跨导 准恒增益 全摆幅 |
| 文章编号： | 1007-0249(2004)03-0069-04 |
Design of Rail-to-rail Constant Conductance and Approximate Constant-gain Input Stage of Operational Amplifiers |
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| WU Jin,ZHOU Zhen.Design of Rail-to-rail Constant Conductance and Approximate Constant-gain Input Stage of Operational Amplifiers[J].Journal of Circuits and Systems,2004,9(3):69-71,79. |
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| Authors: | WU Jin ZHOU Zhen |
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| Abstract: | A new kind of feedforward input stage for low voltage Amplify is presented. The conductance gm is kept unchanged within the dynamic range from rail to rail. The gain is also approximately maintained constant. Feed-forward class AB output structure is adopted to guarantee full rail-to-rail performance. |
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| Keywords: | operational amplifier constant-gm approximate constant-gain rail-to-rail |
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