Kilic, Yavuz and Zwolinski, Mark
Behavioural Fault Modelling using VHDL-AMS and Slow Transient Analysis with hAMSter Simulator to Speed-up Analogue Fault Simulation.
European Test Workshop
Two of techniques to speed-up analogue fault simulation are: fault dropping/collapsing, in which faults that have similar circuit responses compared with the fault-free circuit response and/or with another faulty circuit response are considered equivalent; and behavioural/macro modelling, whereby parts of the circuit are modelled at a more abstract level, therefore reducing the complexity and the simulation time. This paper discusses behavioural modelling as a way to speed-up fault simulation for analogue circuits. In this paper, a new behavioural fault model is developed in VHDL-AMS for a CMOS operational amplifier circuit using slow transient analysis. Simulation results confirm up to 373 times speed-up in terms of CPU time.
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