454Lec06_SPICE

454Lec06_SPICE - ECEN 454 Digital Integrated Circuit Design...

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ECEN 454 Lecture 6 1 ECEN 454 Digital Integrated Circuit Design Lecture 6 SPICE
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ECEN 454 Lecture 6 2 A Brief History of SPICE Started with CANCER at UCB: Computer Analysis of Nonlinear Circuits Excluding Radiation Concurrent gov’t lab project SCEPTRE: System for Circuit Evaluation and Prediction of Transient Radiation Effects CANCER evolved to SPICE: S imulation P rogram with I ntegrated C ircuit E mphasis SPICE became the industry standard
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ECEN 454 Lecture 6 3 SPICE Basics • Formulate the nodal equations • N equations in terms of N unknown node voltages z z z z G(v) i = 1 v 2 v 3 v 4 v C R v + 0 ) ( ) ( ) ( 1 2 4 1 3 1 = + v v G R v v dt v v d C
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ECEN 454 Lecture 6 4 X If we do this for all N nodes: N dimensional vector of unknown node voltages vector of independent sources nonlinear operator 0 )) ( ), ( ), ( ( = t u t x t x F v v v X x v v = ) 0 ( = ) ( t x v = ) ( t u v = F SPICE Basics
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ECEN 454 Lecture 6 5 How can we solve this set of nonlinear differential equations? 0 )) ( ), ( ), ( ( = t
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This note was uploaded on 04/17/2008 for the course ELEN 454 taught by Professor Jianghu during the Spring '08 term at Texas A&M.

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454Lec06_SPICE - ECEN 454 Digital Integrated Circuit Design...

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