Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
If the parasitic capacitance of the node between cascaded LNA’s is high, the noise contribution of the second LNA could be significant at high frequencies.
In CMOS LNA, since noise current is proportional to gm, the cascode transistor's gm is degenerated by input transistor, so I suppose that explains why it contributes less. But how about bipolar LNA? The shot noise is 2qI. How does it work over here? Thanks.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
