低压差动放大器

2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009) Pub Date : 2009-12-01 DOI:10.1109/ICECS.2009.5410954

George Raikos, S. Vlassis

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引用次数: 4

摘要

提出了一种由PMOS晶体管构成的低电压差分放大器。利用局部正反馈提高了输入跨导，改善了噪声性能。输入共模范围也与栅极驱动对应的输入共模范围进行比较。在此基础上构建了截止频率为500khz、纹波为1dB的5阶切比雪夫有源RC滤波器。所有电路均采用标准的0.35um CMOS工艺，在1V电源电压下实现，性能非常理想。

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Low-voltage differential amplifier

A low-voltage differential amplifier constructed by bulk-driven PMOS transistors is proposed in this paper. A local positive feedback is utilized that boosts the input transconductance and improve the noise performance. The input common-mode range is also compared to the gate-driven counterpart. A 5th order Chebyshev active RC filter with 500 kHz cut-off frequency and 1dB ripple is built based on the proposed amplifier. All circuits were implemented with 1V supply voltage using standard 0.35um CMOS process presenting very promising performances.

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来源期刊

2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009)

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