ABSTRACT

This chapter aims to derive a design-oriented model of the delay and power consumption performances of digital structures. This model must give the explicit sensitivity of the performance parameters to the process, to the design and control conditions, as well as to the temperature and the value of the supply voltage. The use of an accurate and design parameter explicit modeling of the switching current is the only way to define alternatives for low-power designing power-efficient circuits. The design-oriented modeling can be obtained into two steps: by determining the maximum available current in the structure, and then considering the input slope effect, which defines the variation of this maximum value with the input control conditions. The method to calibrate the parameters of this representation was given, which that was completely validated on a 0.13-µm process for different temperature and supply voltage conditions.