Effective Resolution of an Adaptive Rate ADC

Saeed Mian Qaisar (1) , Laurent Fesquet (1) , Marc Renaudin (2)

1 TIMA - Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés
2 Tiempo SAS [Montbonnot Saint Martin]

Most real life signals are of non-stationary nature. An efficient acquisition of such signals can be achieved by adapting the acquisition rate according to the input signal local characteristics. In this context, an ARADC (Adaptive Rate Analog to Digital Converter), based on the level crossing sampling is proposed. The ADC effective resolution is a classical parameter to characterize its performance. In this context, a novel method is devised to measure the ARADC resolution. A criterion for properly choosing the different system parameters in the aim of acquiring the desired effective resolution is also described.

Domaines: Traitement du signal et de l'image [eess.SP]; Micro et nanotechnologies/Microélectronique; Traitement du signal et de l'image [eess.SP]

Saeed Mian Qaisar, Laurent Fesquet, Marc Renaudin. Effective Resolution of an Adaptive Rate ADC. SAMPTA'09, May 2009, Marseille, France. Special session on sampling and industrial applications. ⟨hal-00451847⟩