An Amp-Less Time-Domain AC Bridge for Impedance Spectroscopy with 1-bit $\Delta \Sigma$ DAC

2021 ◽  
Author(s):  
Yuya Maekawa ◽  
Hiroki Ishikuro
Keyword(s):  
Impedance Spectroscopy ◽  
Time Domain ◽  
Delta Sigma

A Continuous-Time Delta-Sigma Modulator Using ELD-Compensation-Embedded SAB and DWA-Inherent Time-Domain Quantizer

2016 ◽  
Vol 51 (5) ◽  
pp. 1235-1245 ◽  
Author(s):  
Chan-Hsiang Weng ◽  
Tzu-An Wei ◽  
Erkan Alpman ◽  
Chang-Tsung Fu ◽  
Tsung-Hsien Lin
Keyword(s):  
Time Domain ◽  
Continuous Time ◽  
Delta Sigma Modulator ◽  
Delta Sigma

METROLOGICAL PROPERTIES OF A/D CONVERTERS UTILIZING HIGHER ORDER SIGMA–DELTA MODULATORS COMPARED WITH A/D CONVERTERS WITH MODULATORS OF FIRST ORDER

2014 ◽  
Vol 21 (1) ◽  
pp. 37-46
Author(s):  
Tadeusz Sidor
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Higher Order ◽  
Superior Performance ◽  
Sigma Delta ◽  
Sigma Delta Modulators ◽  
First Order ◽  
Delta Sigma ◽  
Metrological Property

Abstract Time domain analysis is used to determine whether A/D converters that employ higher order sigma-delta modulators, widely used in digital acoustic systems, have superior performance over classical synchronous A/D converters with modulators of first order when taking into account their important metrological property which is the magnitude of the quantization error. It is shown that the quantization errors of delta-sigma A/D converters with higher order modulators are exactly on the same level as for converters with a first order modulator.

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