Process variation compensation of a 2.4GHz LNA in 0.18um CMOS using digitally switchable capacitance

被引：3

作者：

Cui, Yike ^{[1
]}

Chi, Baoyong ^{[1
]}

Liu, Minjie ^{[1
]}

Zhang, Yulei ^{[1
]}

Li, Yongming ^{[1
]}

Wang, Zhihua ^{[1
]}

Chiang, Patrick ^{[2
]}

机构：

[1] Tsinghua Univ, Inst Microelect IMETC, Beijing 100084, Peoples R China

[2] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR USA

来源：

2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11 | 2007年

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

D O I：

10.1109/ISCAS.2007.377838

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

A 0.18um CMOS 2.4GHz LNA (Low Noise Amplifier) with digitally switchable capacitance has been designed to investigate its ability to compensate for performance variation across worst case process conditions. The effects of transistor model and passive component variation are first simulated to quantify the range of performance uncertainty. The use of various methods of switchable capacitance is then investigated at multiple LNA nodes to observe the effect on S-11, S-21, and NF. After calibration, the new design allows for 300MHz of frequency tuning and improvements in S-11 by 7.2dB, S-21 by 2.4dB, and NF by 0.6dB.

引用

页码：2562 / +

页数：2

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