The Integrate-and-fire Sampler: A Special Type Of Asynchronous ∑-δ Modulator

Author

Alexander Singh Alvarado
Manu Rastogi
John G. Harris, Missouri University of Science and TechnologyFollow
Jose C. Principe

Abstract

We present the integrate-and-fire (IF) model as a time encoding scheme and show that it corresponds to a special case of the asynchronous - modulator (ASDM). We depart from typical rate-based encoding used by conventional ASDM towards time-based encoding. We show that for certain families of signals, such as neural recordings, the IF sampler accurately encodes the regions of interest at sub-Nyquist data rates. Nevertheless, the encoder requires nonlinear recovery algorithms, instead of the typical low pass filter. © 2011 IEEE.

Recommended Citation

A. Singh Alvarado et al., "The Integrate-and-fire Sampler: A Special Type Of Asynchronous ∑-δ Modulator," Proceedings IEEE International Symposium on Circuits and Systems, pp. 2031 - 2034, article no. 5937995, Institute of Electrical and Electronics Engineers, Aug 2011.

The definitive version is available at https://doi.org/10.1109/ISCAS.2011.5937995

Department(s)

Electrical and Computer Engineering

International Standard Book Number (ISBN)

978-142449473-6

International Standard Serial Number (ISSN)

0271-4310

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

02 Aug 2011