ece hw8 - 1 University of Massachusetts Department of...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 University of Massachusetts Department of Electrical and Computer Engineering ECE 323 Electronics I Fall 2010 Problem Set 8: Dynamics of Switching Transistors Problem 1: In this problem you will estimate the time delay through a CMOS inverter using two different sets of equations for the devices in the inverter. The first set of equations is the classic long channel equations that we have been using all along in this course, equations 10.14 and 10.15 in Sedra and Smith and their PMOS counterparts. These are not accurate for the short channel devices used in current technology. A more accurate set is given below. Use the technique described in Sec. 10.2.3 of Sedra and Smith (specifically Eq. 10.17) to determine the propagation delay, first using long channel equations and then using the equations below. Remember, τ p = ( τ pHL + τ pLH )/2 so you need to use equations for NMOS for pull-down and PMOS for pull-up. Compare the propagation delay calculated using the long channel equations to the delay calculated using the short channel equations.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern