Title :
Estimation of power dissipation in switched-capacitor circuits
Author :
Casinovi, Giorgio ; Young, Chad
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
This paper presents an algorithm for probabilistic analysis of the power dissipation in switched-capacitor circuits, which are frequently found in a number of low-power designs, such as those for mobile communications equipment. The inputs to the circuit are modeled as a stationary Markov process of order zero or one. The expected power dissipation is obtained from first- and second-order moments of (he probability distributions of voltages and charges in the circuit. The algorithm does not require Monte Carlo analysis; instead, (he moments of the probability distributions are computed from the solutions of systems of linear algebraic equations, taking into account any correlation among the inputs. To demonstrate the algorithm´s performance, numerical results obtained on a number of sample switched-capacitor circuits are reported.
Keywords :
CMOS integrated circuits; Markov processes; circuit CAD; circuit simulation; integrated circuit design; low-power electronics; statistical distributions; switched capacitor networks; CMOS circuits; circuit simulation; computer-aided analysis; linear algebraic equations; low-power designs; mobile communications equipment; power dissipation; power modeling; probabilistic analysis; software implementation; stationary Markov process; switched-capacitor circuits; Algorithm design and analysis; Distributed computing; Equations; Markov processes; Mobile communication; Monte Carlo methods; Power dissipation; Probability distribution; Switched capacitor circuits; Voltage;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCAD.2003.819384
