Using Recursive Multibit $\Sigma\Delta$ Modulators to Reduce the Quantization Noise Power

Daniel Schinkel; Adrianus Johannes Maria van Tuijl; Anne J. Annema

Using Recursive Multibit $\Sigma\Delta$ Modulators to Reduce the Quantization Noise Power

Daniel Schinkel, Adrianus Johannes Maria van Tuijl, Anne J. Annema

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Abstract

This paper discusses a recursive multibit Σ∆ architecture that enables a high effective quantizer resolution while needing only a limited number of DAC elements. The recursive architecture consists of a set of Σ∆ modulators, whereby each stage cancels the quantization noise of the preceding stage. Conventional DEM algorithms can be used in each stage to reduce the sensitivity to mismatch. The architecture enables a significant reduction of both the signal-band and out-ofband quantization noise power, compared to conventional multibit Σ∆ converters.

Original language	English
Pages	589-593
Number of pages	5
Publication status	Published - Nov 2004
Event	15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004 - Veldhoven, Netherlands Duration: 25 Nov 2004 → 26 Nov 2004 Conference number: 15

Conference

Conference	15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004
Abbreviated title	ProRisc
Country/Territory	Netherlands
City	Veldhoven
Period	25/11/04 → 26/11/04

Keywords

sigma-delta modulation
IR-59506
EWI-14491
quantizer
cascaded modulators
out-of-band noise
multibit

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title = "Using Recursive Multibit $\Sigma\Delta$ Modulators to Reduce the Quantization Noise Power",

abstract = "This paper discusses a recursive multibit Σ∆ architecture that enables a high effective quantizer resolution while needing only a limited number of DAC elements. The recursive architecture consists of a set of Σ∆ modulators, whereby each stage cancels the quantization noise of the preceding stage. Conventional DEM algorithms can be used in each stage to reduce the sensitivity to mismatch. The architecture enables a significant reduction of both the signal-band and out-ofband quantization noise power, compared to conventional multibit Σ∆ converters.",

keywords = "sigma-delta modulation, IR-59506, EWI-14491, quantizer, cascaded modulators, out-of-band noise, multibit",

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year = "2004",

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AU - Schinkel, Daniel

AU - van Tuijl, Adrianus Johannes Maria

AU - Annema, Anne J.

N1 - Conference code: 15

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N2 - This paper discusses a recursive multibit Σ∆ architecture that enables a high effective quantizer resolution while needing only a limited number of DAC elements. The recursive architecture consists of a set of Σ∆ modulators, whereby each stage cancels the quantization noise of the preceding stage. Conventional DEM algorithms can be used in each stage to reduce the sensitivity to mismatch. The architecture enables a significant reduction of both the signal-band and out-ofband quantization noise power, compared to conventional multibit Σ∆ converters.

AB - This paper discusses a recursive multibit Σ∆ architecture that enables a high effective quantizer resolution while needing only a limited number of DAC elements. The recursive architecture consists of a set of Σ∆ modulators, whereby each stage cancels the quantization noise of the preceding stage. Conventional DEM algorithms can be used in each stage to reduce the sensitivity to mismatch. The architecture enables a significant reduction of both the signal-band and out-ofband quantization noise power, compared to conventional multibit Σ∆ converters.

KW - sigma-delta modulation

KW - IR-59506

KW - EWI-14491

KW - quantizer

KW - cascaded modulators

KW - out-of-band noise

KW - multibit

M3 - Paper

SP - 589

EP - 593

T2 - 15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004

Y2 - 25 November 2004 through 26 November 2004

ER -

Using Recursive Multibit $\Sigma\Delta$ Modulators to Reduce the Quantization Noise Power

Abstract

Conference

Keywords

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