An equation to calculate the device power consumption based on the different current conduction paths in a MOSFET is presented.
A generic methodology to accurately measure the power and energy consumption with circuit simulators is described in this paper. A blind-trust in the CAD tools may lead to gross errors in the power estimation. However, the accuracy of the measured power is mostly overlooked since the approximations and the methodology used by the existing built-in power estimation tools are not well documented. Circuit simulators typically provide built-in functions to measure the power consumption. Work demonstrates the most appropriate method of power measurement in a circuit using Cadence Virtuoso Analog design environment and its result browser.Ĭomputer-aided design (CAD) tools are frequently employed to verify the design objectives before the fabrication of an integrated circuit. In this paper we present different ways of measuring the power of the circuit using the EDA simulation tools and their accuracy when compared with the theoretical computations. The EDA simulation tools come with built-in functions to measure the power consumption. Of late, with IP based design flow, power has been the major parameter to assess the quality of the IP core and accuracy of the power measurement of the CAD tools is important. These approximations are not very well documented by the EDA tool vendors. An error in the range of 9.6 – 14.18% is observed between the power indicated in the circuit by the tool and theoretical calculations. The accuracy of the power measured using these EDA Tools are overlooked since the approximations are good enough to take design decisions.
#Cadtools measure area verification#
Electronic design Automation (EDA) tools are used for design verification before fabrication of the integrated circuits.
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