Open AccessTrue high‐order VCO‐based ADC
Author(s) -
BabaieFishani A.,
Rombouts P.
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.2719
Subject(s) - voltage controlled oscillator , integrator , integrating adc , delta sigma modulation , electronic engineering , voltage , computer science , scaling , cmos , electrical engineering , physics , engineering , capacitor , mathematics , geometry , ćuk converter
A novel approach to use a voltage‐controlled oscillator (VCO) as the first integrator of a high‐order continuous‐time delta–sigma modulator (CT‐DSM) is presented. In the proposed architecture, the VCO is combined with a digital up–down counter to implement the first integrator of the CT‐DSM. Thus, the first integrator is digital‐friendly and hence can maximally benefit from technological scaling.