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60 Threads found on edaboard.com: Cascode Lna
Hi, I am trying to understand DC biasing in a paper having 2-stage lna implemented using FinFET in 32nm. The width mentioned of first stage cascode is 1?m and second stage is 2.4?m. The DC currents are not mentioned but overall DC power is mentioned which is 12mW so, assuming 6mW in first stage giving 6mA of current for VDD of 1.2Vappro
I am designing a single stage source degenerated cascode lna. I have understood most of it theory regarding input matching but dont understand how to do output matching of thi lna ? Hope someone can explain it to me. Regards Vipul
Sorry, I wrote this informations the previous post. So,I couldn't think that. I used 180nm Cmos process and apply the folded cascode lna with Mds Technique (modified derivative superposition). The center frequency is 5GHz. I import the spice netlist in Awr, Level 49. I obtain some values but the gain is very odd. So I think that all circuit is wro
I am designing a differential lna(two outputs) with CG-CS cascode topology in ADS. I got s(21) -19 dB and s(31) +9 dB. But when i have connected external 3 port balun, i got 8 db of gain. I am confused, what should i take as gain that is whether it is magnitude addition of two ports gain which comes out to be 27 or balun's 8 dB GAIN. when i did t
Hello, I am designing an lna (in Cadence for class project). I am having a simple problem, (sorry for my representation here). I am going cascode with this one. I have calculatad values for {g }_{m}, width, {w }_{T } , {F }_{min,p}, etc. So far, the cut-off frequency is calculated as {w }_{T }= [
I want to measure Zin of an cascode lna using Cadence. I am wondering if this is correct. 1. Measure S - parameters 2. Convert S to Z parameters 3. Zin = Z11 from the result above I know that Zin is not Z11 in ZP analysis, though.
Hi, This is a cascode lna. Please help me with the question in picture. Thank
Here is a cascode lna. Does NFmin depend on Lg and Ls? And does Yopt = Gopt + jBopt depend on Ls,
Is there an intuitive way to explain why in cascode lna the feedback inductor in the source doesn't affect to minimum noise factor, Fmin?
what is the use of current reuse technique in lna design? Less power consumption than an lna with 2 separate gain stages. Current reuse technique is nothing else than a cascode (dual) stage. Same bias current for both gain stages. How can we know the reduced power consumption by
For a simple common source cascode lna, which device contributes more nonlinearity, the GM device or the cascode device? Thanks!
Hello all, I am asked to come up with an estimation of my lna area including bond pads. I am using traditional , Common source cascode lna topology which utilizes 3 inductors, 2 transistors etc. How many bondpads will I need ? One for ground, one for power supply , one for RF in and one for RF out? only 4? Is that correct or I am (...)
If you search "Bipolar cascode lna" in google,I'm sure you'll find lot of docs. about that..
how to design broadband lna for (0.5 -3)GHz?? Please tell me from where i have to start my project :-( Some tips for your lna.. -Your lna will potentially have feedback circuit in order to achieve this bandwidth. -Your lna will probably be cascode configuration due to very wide bandwidth. -You should use (...)
See "Miller Compansation" by using cascode Structure.
hello all.. For 0.18um CMOS technology, when i searched on MOSIS i found various model cards...how to decide which model card will be best suitable for my cascode CS lna design...?? please suggest... thank u..
hello all.. how to design current reuse topology in existing common source cascode lna for reducing power dissipation....?? thank you...
hello all... i m working on a cascode common source lna using cmos circuit.... i have achieved a wider bandwidth of 0.1-8GHz in my circuit... i have simulated results using tspice for 0.18um tech.. but i m confused that as a student i cant afford fabrication so there is no need to go for layout...instead what else best i can analyse....?? i
This is a schematic of the cascoded inductor degenerate lna, so the current flow across M3 is : 1/2 un Cox W/L ( Vdd - Id Rref - Vth)^2 by setting values of rref and W/L , you set the bias current, which is then copied to M1. But what is Rbias
cascode structure can be a good starting point but if your frequency is very high you should also consider single ended cascade configuration.