Use of the step invariant transform to design a 2^nd order continuous time complex sigma-delta ADC

Authors

Niall Duncan
Anthony Dunne, Freescale Semiconductor
Michael Peter Kennedy, University College CorkFollow

Abstract

To reduce simulation times, continuous time (CT) sigma-delta modulators can be modeled as equivalent discrete time (DT) systems so that DT simulators can be used. This method reviews two popular methods of converting from CT to DT and applies them to a second order CT complex ADC. The ADC being designed is for use with a low IF receiver and achieves 80dB SNDR in simulation. © 2006 IEEE.

Publication Title

Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems

Recommended Citation

Duncan, N., Dunne, A., & Kennedy, M. (2006). Use of the step invariant transform to design a 2^nd order continuous time complex sigma-delta ADC. Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems, 54-57. https://doi.org/10.1109/ICECS.2006.379699