A new structure of low-noise CMOS differential amplifier

被引:0
|
作者
Wei, L [1 ]
Gao, J [1 ]
Chen, ZJ [1 ]
Ji, LJ [1 ]
机构
[1] Peking Univ, Inst Microelect, Beijing 100871, Peoples R China
关键词
CMOS; differential amplifier; low noise; l/f noise;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A new structure of low-noise CMOS differential amplifier has been presented in this paper. The structure is mainly based on a load of common-gate MOSFETs with resistances in series at sources (CG-R load), which does not increase complication of the circuit. This structure decreases 1/f noise of the load by a (1 + g(m2) R)(2) coefficient, while keeps the voltage gain high. The simulation result for the given example reveals an average reduction of 90% for load noise at low frequencies, compared with current-mirror load (CM load).
引用
收藏
页码:410 / 413
页数:4
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