Validation of data converter specifications with behavioral modeling simulations

The increasing complexity of data converter architectures makes it necessary to use behavioral models to simulate electrical performances and to determine the relevant data converter features. For this purpose, special input stimuli and specific output data processing are required. In view of that, it is necessary to offer a specific data-converter simulation environment that permit the designer to validate the data converter specification and to extract the basic blocks key features before starting the transistor level design. Pointed toward this objective, this paper analyses the most utilized architectures and identifies the basic (active and passive) building blocks used. Behavioral models of such basic blocks are discussed. The proposed behavioral models are then used in a pipeline and a S–D converter. Specific routines for the determination of data converter parameters are presented. Simulations show how specific features of basic blocks affect the overall performances. Thus, guidelines on how to design the circuit in order to meet specifications are given.  2002 Elsevier Science Ltd. All rights reserved.