HWSOL5

HWSOL5 - ECE 124A, Fall 2009, Hw#5 Prof. Kaustav Banerjee...

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ECE 124A, Fall 2009, Hw#5 Prof. Kaustav Banerjee 1 UNIVERSITY OF CALIFORNIA, SANTA BARBARA Department of Electrical and Computer Engineering ECE124A VLSI Principles Homework #5 Reading Assignment: Chapter 4, Sections 4.5- 4.9, and Chapter 6, Sections 6.1-6.2 CMOS VLSI Design: A Circuits and Systems Perspective (3rd Edition), Neil H. E. Weste and David Harris, Addison Wesley, 2005. 1. a) The voltage transfer curve (indicate with a sketch of the VTC) It shifts to the right due to weaker NMOS devices. Electron mobility reduces for higher temperature b) Inverter switching threshold It increases c) Gain It also reduces, since the slope of the VTC curve in transition region reduces. When both device operates in low temperature due to sizing ratio VTC is in optimum status (close to ideal case) when NMOS operates in higher temperature, VTC deviates from optimum case. d) Noise margin (low and high) Noise margin Low reduces while noise margin high increases e) Delay Delay increases since the high-to-low transition is slower (higher rise time) f)
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This note was uploaded on 12/04/2010 for the course ECE 134 taught by Professor York during the Fall '08 term at UCSB.

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HWSOL5 - ECE 124A, Fall 2009, Hw#5 Prof. Kaustav Banerjee...

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