Time-interleaved switched-capacitor filter for reconfigurable triple-band delta-sigma converter

Journal Article

A time-interleaved switched-capactior filter design for reconfigurable triple-band delta-sigma (δσ) analog-to-digital converter (ADC) is discussed. The proposed filter design utilizes time multiplexing of sampled data to capacitors, and it is useful to implement a dual-band (low-pass and high-pass) delta-sigma converter, or a single-band band-pass delta-sigma converter. Either of these two configurations can be selected in real time by changing clock signals and output downsampling filters. The basic reconfigurable triple-band filter can be applied directly to many higher-order delta-sigma architectures. Behavioral simulations of first-order and second-order time-multiplexed dualband (low-pass and high-pass) converters, and second-order and fourth-order band-pass converters are presented. The proposed triple-band filter is useful for the implementation of a sensor micro system-on-a-chip with communication capability. © 2005 IEEE.

Full Text

Duke Authors

Cited Authors

  • Kim, DD; Brooke, MA

Published Date

  • December 1, 2005

Published In

Start / End Page

  • 1402 - 1405

International Standard Serial Number (ISSN)

  • 0271-4310

Digital Object Identifier (DOI)

  • 10.1109/ISCAS.2005.1464859

Citation Source

  • Scopus