8 mA, 3.8 dB NF, 40 dB gain CMOS front-end for GPS applications

被引：0
|
作者：
Svelto, F. [1 ]
Deantoni, S. [1 ]
Montagna, G. [1 ]
Castello, R. [1 ]
机构：
[1] Universita di Bergamo, Pavia, Italy
来源：
Proceedings of the International Symposium on Low Power Electronics and Design, Digest of Technical Papers | 2000年
关键词：
Electric power supplies to apparatus - Global positioning system - Mixer circuits - Varactors;
D O I：
10.1145/344166.344632
中图分类号：
学科分类号：
摘要：
A fully differential 0.35 μm CMOS LNA plus mixer, tailored to a double conversion architecture, for GPS applications has been realized. The LNA makes use of an inductively degenerated input stage and a resonant LC load, featuring 12% frequency turning, accomplished by an MOS varactor. The mixer is a Gilbert cell like, in which an NMOS and a PMOS differential pair, shunted together, realize the input stage. This topology allows to save power, for given mixer gain and linearity. The front-end measured performances are: 40 dB gain, 3.8 dB NF, -25.5 dBm IIP3, 1.3 GHz input frequency, 140 MHz output frequency, with 8 mA from a 2.8 V voltage supply.
引用
收藏
页码：279 / 283
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