2005 Volume 2 Issue 1 Pages 25-31
A complete analysis of noise in inductively source degenerated CMOS LNA's is presented. One parameter that has great impact on the noise performance of the LNA is Ls. For small Ls the noise of M1 is dominant, but increasing the Ls causes the output noise power due to other components grow noticeably. We use the MATLAB for simulating the LNA whereas all parasitics are extracted from a 0.35µm CMOS HSPICE technology file. It is supposed the LNA used in the front-end of a prototype UMTS receiver.