Stats

Locked Locked
Replies 4
Subscribers 125
Views 15330
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Taking the derivative produces a strange line plot

Hello,

I have a single NMOS device for which I sweep Vgs while keeping Vds constant.

Ploting the drain current Id and taking its derivative, instead of producting a single line plot, I obtain a two lines plot which both connected to each other. Therefore, this plot is worng. I am using ver. IC6.1.4.

Anyone knows what the problem is?

Thanks,

Yannis

Parents

Andrew Beckett over 14 years ago

Did you check the "hysteresis" checkbox on the DC form? That would sweep both up and then down - and so I can imagine you could get a similar trace. What do you get if you plot the signal (without the deriv)?
Regards,
Andrew.
Cancel
Vote Up 0 Vote Down

Cancel

Reply

Andrew Beckett over 14 years ago

Did you check the "hysteresis" checkbox on the DC form? That would sweep both up and then down - and so I can imagine you could get a similar trace. What do you get if you plot the signal (without the deriv)?
Regards,
Andrew.
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.