학술논문
A fast method for Transistor Circuit Voltage Range analysis using linear programming
Document Type
Conference
Source
Proceedings of the 17th International Conference Mixed Design of Integrated Circuits and Systems - MIXDES 2010 Mixed Design of Integrated Circuits and Systems (MIXDES), 2010 Proceedings of the 17th International Conference. :385-390 Jun, 2010
Subject
Language
Abstract
This paper presents a method for fast, automated analysis of device constraints in analog CMOS circuits. A linearized operating point (LOP) model is proposed which allows device constraints like saturation conditions to be formulated as system of linear inequalities (linear program) with circuit node voltages as free variables. The LOP model parameters are obtained from device lookup tables (LUTs) from a single DC simulation. The linear program is solved to obtain valid voltage ranges of supply, input or biasing nodes. Practical examples show that this method provides fast analysis of device constraints with good accuracy over a wide range of CMOS technologies without numerous, time-consuming circuit simulations. Therefore it is well suited for analog design automation applications.