CHEMFET modelling for hardware description languages

The new standard - VHDL-AMS (Very High Speed Hardware Description Language-Analogue Mixed Signals) was introduced several months ago. The main aim of introducing the new standard is unification of currently existing hardware description languages and (as in case of VHDL) making the libraries of elements that could be accessible by other users or designers. In this paper the presentation of the model of chemical sensor in VHDL-AMS was proposed. Presented description of the model as well as the results of the simulation was compared with the same model described in ELDO with usage of Hdl-A - so-called "quasi-standard" of the hardware description language introduced some years ago by Mentor Graphics.