Using excess loop delay to simplify LC-based ΣΔ modulators

Ahmed Ashry 1 Hassan Aboushady 1
1 CIAN - Circuits Intégrés Numériques et Analogiques
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : The excess loop delay in continuous-time LC-based ΣΔ modulators, which usually has negative effect on the stability and the signal-to-noise ratio of the modulator, can be used to simplify the modulator architecture and reduce the number of needed feedback branches. The proposed technique is discussed and validated using a design example of a fourth-order bandpass continuous-time LC-based modulator.
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00574538
Contributor : Ahmed Ashry <>
Submitted on : Tuesday, March 8, 2011 - 11:42:37 AM
Last modification on : Friday, May 24, 2019 - 5:26:11 PM

Identifiers

Citation

Ahmed Ashry, Hassan Aboushady. Using excess loop delay to simplify LC-based ΣΔ modulators. Electronics Letters, IET, 2009, 45 (25), pp.1298-1299. ⟨10.1049/el.2009.2650⟩. ⟨hal-00574538⟩

Share

Metrics

Record views

93