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- Title
Digital excess loop delay compensation technique with embedded truncator for continuous-time delta-sigma modulators.
- Authors
Tao He; Yi Zhang; Temes, Gabor C.
- Abstract
A novel implementation is proposed to relax the specifications of the internal feedback path for a continuous-time delta-sigma modulator. A truncator is embedded into the digital excess loop delay (ELD) compensation path. Thermometer-coded truncation is achieved by reordering the reference voltages of the internal quantiser. This requires only a small amount of extra digital circuitry compared to the conventional digital ELD compensation. The digital encoder controlling the digital-to-analogue converter is simple, and it only introduces a small ELD.
- Subjects
CONTINUOUS-time filters; ELECTRONIC modulators; ELECTRIC potential; DIGITAL electronics; CONVERTERS (Electronics); THERMOMETERS
- Publication
Electronics Letters (Wiley-Blackwell), 2016, Vol 52, Issue 1, p20
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2015.1595