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.
The circuit has around 900 MOSFETs...So just running one equation wouldn't work...Then it would be the case of a simple CMOS inverter which has one PMOS and NMOS...
I want to verify the model for the same multiplier circuit...Most of the literature works have stated that model verification is done using MATLAB...So how do i verify the model?
I have a multiplier circuit simulated using LTspice..I would wish to verify new set of delay equations for the same multiplier circuit using MATLAB...How can I do this?
Yes vth is the independent parameter...I have come across that we can plot graph (extract values using SPICE) and then use curve fitting tool in matlab...any idea about this ?
Note: this is not the exact equation..quoted it as a small example
Given a leakage power equation
P=a0 + (a1+a2)*vth^2
where a0,a1,a2 are the fitting parameters and vth is the threshold voltage. How do I extract these values through SPICE?
Assuming input of bottom transistor (NMOS) of NAND gate is held at VDD and upper transistor (NMOS) switches from 1-0 , what should be the current equation that must be substituted for Isub in the equation delay= C*V/Isub ..
As per my knowledge, one of the PMOS transitors will be conducting and...
Variability at 32nm node in subthreshold regime
Greetings,
Can threshold voltage and gate length be varied concurrently ?Is it possible to consider simultaneous 3 sigma variations for both these parameters during modeling? Or these two parameters correlated (correlation coefficient must be...
So once i get the SS and FF model files, is that using thses model file i just need to run my simulations?
- - - Updated - - -
I have downloaded 32nm models for TT, FF,and SS from ptm website(http://ptm.asu.edu/). I want to test these on a cmos inverter using LTspice. Kindly tell me how should...
Greetings,
I have simulated a CMOS inverter in LTspice using the following specifications
Supply voltage 0.2V
NMOS & PMOS Length(L)=32n
NMOS Width(W) =32n
PMOS Width(W) =64n
NMOS Drain/Source Area=2f
PMOS Drain/Source Area=4f
NMOS Drain/Source Perimeter=192n
PMOS Drain/Source...
Greetings,
I m trying to generate gaussian distribution for length of NMOS and PMOS device...But simulation throws an error...How do i resolve this issue?I have attached the .asc file and model file which i m working on..
I need to overlap the MC gaussian distribution for threshold voltage generated using MATLAB and LTspice..If i use the same mean value(i.e 0.3558) and sigma value(3*sigma=10% i.e sigma=0.0333) for both my simulations then MATLAB distribution is much more wider than LTspice distribution..On the...
Sub-threshold slope factor is given by :
[1+ Cd/Cox]
Cd = depletion capacitance
Cox= oxide capacitance
How to calculate the Sub-threshold slope factor for different technology nodes? I m able to substitute for Cox but i don't know how to calculate Cd...i m using the basic inverter circuit
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.