Continue to Site

Welcome to EDAboard.com

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.

Register Log in

Problem with Spectre Monte Carlo Analysis

Status
Not open for further replies.
wjxcom

wjxcom

Full Member level 5
Joined
Sep 7, 2005
Messages
281
Helped
4
Reputation
8
Reaction score
3
Trophy points
1,298
Activity points
3,840
spectre distributed monte carlo mps

Hi all:

I designed a comparator, in the comparator circuit, the W, L and M of the Input Transistor(NMOS) is 2u, 1.5u and 2.

But when I perform the Monte Carlo Analysis, there have a problem: I modified the M of the Input Transistor 2 to 8, I found that the simulation result is not changed! i.e. the simulation result of M=2 is all the same to the simulation result of M=8!

I don't think this simulation result is right! the simulation result shouldn't be the same. I do not know what's wrong with the simulation! Help me please, thanx!!
 

monte carlo spectre expressions

Try to use instead of parameter M parallel transistors, for example M1 <1:8>.
 

    wjxcom

    wjxcom

    Points: 2
    Helpful Answer Positive Rating
Hi pit1000: would you tell me why the simulation result is not right whtn I use the parameter M?
 

The multiplication factor not affect variations parameters.
 

    wjxcom

    wjxcom

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top