A 108dB SNR 1.1mW Oversampling Audio DAC with a Three-Level DEM Technique

Previously reported multi-bit oversampling DeltaSigma audio DACs use 2-level (+1, -1) unit elements in either switched-capacitor or current-steering form. This paper presents a low-power audio DAC that uses a 3-level current-steering unit element architecture.

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Bibliographic Details
Main Authors: Nguyen, Khiem, Bandyopadhyay, Abhishek, Adams, Bob, Sweetland, Karl, Baginski, Paul
Format: Conference Proceeding
Language:English
Subjects:
Clocks
Current density
Error analysis
Filters
Interpolation
Noise shaping
Signal to noise ratio
Switches
Switching circuits
Voltage
Online Access:Request full text
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Description
Summary:Previously reported multi-bit oversampling DeltaSigma audio DACs use 2-level (+1, -1) unit elements in either switched-capacitor or current-steering form. This paper presents a low-power audio DAC that uses a 3-level current-steering unit element architecture.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2008.4523270