
[SOLVED] - Explain NMOS ID vs VDS curve graph - Forum for …
2012年6月14日 · Re: NMOS ID vs VDS curve Beta [uA/v^2] of the this nmos process > 2500 uA/V^2 and K > 0.55V^1/2 Id can goes up to 5mA when Vd = Vg = 5V for the size that selected. What I can say on my simulation results now is green line is ideal and red line is non-ideal characteristic in my first post.... - - - Updated - - - Dear all, Thanks for the idea.
finding lambda of nMOS 0.18u | Forum for Electronics
2007年7月9日 · spectre id vds i found it this way take two points on Id vs. Vds curve. this will give two linear equations of Id in terms of Vds (Vgs is same on the curve, so the Vth). so calculated lambda from simple manipulation Id1 1+lambda*Vds1--- = -----Id2 1+lambda*Vds2 would any one comment if i have found lambda correctly
How do I plot Id vs VDS for different VGS in Hspice?
2005年11月30日 · Cadence plot-Id Vs Vds for different Overdrive voltage. Started by lachuns123; Dec 29, 2022; Replies: 0;
Getting the VA (or VE) Early voltage for a NMOS and a PMOS …
2010年8月24日 · Then, get two points from the characteristic curve Ids vs Vds and then calculate the VA through the equation of the line (y =mx + b). Now that you showed that figure, one can compute the VA using that equation. Is that as accurate than the y=mx+b approach? All the values in VA = (Id/gds) - Vds are taken from the DC analysis? (DC operation points)
How to fix the Vds after plotting the gm/Id vs. Id/W
2007年3月18日 · how to get gm id ro I think to plot gm/ID Vs Normalized current Vds is not fixed. TO plot gm/ID Vs ID/W a diode connected (Drain and gate shorted )configuration dof the transistor is used. and the supply voltage connected to drain with sweep from 0 to (say) vdd. Read the following attached doc( 3rd subpart ). I think this will be helpfull to u.
plot gm/gds vs gm/id | Forum for Electronics
2020年4月11日 · If you use Stanford University VS-CNFET(Virtual Source CNFET) Model, it is a Compact Model based on Verilog-A description. You can extract gm and gds as internal calculation result, if you can understand model equations.
What does Rds(on) in a MOSFET mean? | Forum for Electronics
2007年7月12日 · the linear region is where Vds is significant and does NOT vary with Id. Instead, Id goes up and down with Vgs. That's the middle area where the traces are flat. the "off" area is where Vgs is < Vgs(th). Added after 4 minutes: another way to look at the same thing is to look at its Id vs. Vgs chart: from irfp240.
4. Id/ (W/L) Vs gm/Id Plots These plots help in determining the required W/L for a given current. If we have chosen the gm/Id values, we can choose the aspect ration of the MOST from these plots. First, a comparative plot is shown. Here L varies from 0.36 m to 3.6 m. Separate Id/(W/L) Vs gm/Id plots have been generated for each L
How to determine Vth from this nmos graph. - Forum for Electronics
2012年11月20日 · You could export tabular data to Excel and fit the sqrt(Id) vs Vgs line. Or you could just call some arbitrary current level your "VT" (but this would not be the VT you want to insert in a model card, exactly). There's a bunch of VT extraction methods, giving slightly different results and resiliencies to measurement conditions & device ...
Ids Vs Vds plot, increasing slope with Vgs - Forum for Electronics
2012年2月10日 · hi all, when i plot the Id Vs Vds for different Vgs , the current is increasing with the increasing Vgs which is normal. but my question is why the slope is also increasing with increase in Vgs. mathematical explaination would be helpful. please help me. Thank you.