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Highly Linear 2,5-V CMOS ΣΔ Modulator for ADSL+ [Article]
(Institute of Electrical and Electronics Engineers, 2004)
We present a 90-dB spurious-free dynamic range sigma–delta modulator (ΣΔM) for asymmetric digital subscriber line applications (both ADSL and ADSL+), with up to a 4.4-MS/s digital output rate. It uses a cascade (MASH) ...
Fourth-order cascade SC ΣΔ modulators: a comparative study [Article]
(Institute of Electrical and Electronics Engineers, 1998)
Fourth-order cascade ΣΔ modulators are very well suited for IC implementation using analog sampled-data circuits because of their robust, stable operation and their capability to achieve high resolution and wide bandwidth ...
A 13-bit, 2.2-MS/s, 55-mW multibit cascade ΣΔ modulator in CMOS 0.7-μm single-poly technology [Article]
(Institute of Electrical and Electronics Engineers, 1999)
This paper presents a CMOS 0.7-μm ΣΔ modulator IC that achieves 13-bit dynamic range at 2.2 MS/s with an oversampling ratio of 16. It uses fully differential switched-capacitor circuits with a clock frequency of 35.2 MHz, ...
Chaos via a piecewise-linear switch ed-capacitor circuit [Article]
(Institution of Engineering and Technology, 1987)
A nonlinear switched-capacitor circuit that generates chaotic signals is reported. The circuit is described by a first-order piecewise-linear discrete equation that exhibits a chaotic dynamics. Experimental results ...
A Chaotic Switched-Capacitor Circuit for 1/f Noise Generation [Article]
(Institute of Electrical and Electronics Engineers, 1992)
A switched-capacitor circuit is reported for the generation of 1 / fYnoise. The circuit is described by a chaotic first-order piecewise-finear discrete map which yields a hopping transition between regions of chaotic motions ...
Double-Sampling Single-Loop EA Modulator Topologies for Broad-band Applications [Article]
(Institute of Electrical and Electronics Engineers, 2006)
This paper presents novel double sampling high-order single loop sigma-delta modulator structures for wide-band applications. To alleviate the quantization noise folding into the inband frequency region, two previously ...