SAR-based delta–sigma modulator using single-bit shared-DAC

SAR-based delta–sigma modulator using single-bit shared-DAC

A new single-bit ΔΣ modulator based on multi-bit quantisation and a successive approximation (SA) algorithm with improved output swing due to a reduced quantisation noise power is presented. Although this structure maintains the linearity of the single-bit digital-to-analogue converter (DAC), it als...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Electronics letters 2014-01, Vol.50 (3), p.156-158
Hauptverfasser: Reyhani, S.Z, Hashemipour, O
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Amplifiers
Applied sciences
Approximation
Circuit properties
Circuits and systems
Converters
delta‐sigma modulation
digital‐to‐analogue converter
Dissipation
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Mathematical analysis
Modulators
multibit quantisation
Noise reduction
quantisation noise power reduction
SAR‐based delta‐sigma modulator
Signal convertors
single‐bit shared‐DAC
Slew rate
successive approximation register
ΔΣ modulator
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A new single-bit ΔΣ modulator based on multi-bit quantisation and a successive approximation (SA) algorithm with improved output swing due to a reduced quantisation noise power is presented. Although this structure maintains the linearity of the single-bit digital-to-analogue converter (DAC), it also removes the requirement for a high slew rate operational amplifier. Hence, the modulator dissipates less power.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2013.3589