Two op-amps third-order sigma-delta modulator with 61-dB SNDR, 6-MHz bandwidth and 6-mW power consumption

被引：13

作者：

Bonizzoni, Edoardo ^{[1
]}

Perez, Aldo Pena ^{[1
]}

Maloberti, Franco ^{[1
]}

Garcia-Andrade, Miguel A. ^{[2
]}

机构：

[1] Univ Pavia, Dept Elect, I-27100 Pavia, Italy

[2] Univ Autonoma Baja California, Mexicali 21100, Baja California, Mexico

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2011年 / 66卷 / 03期

关键词：

Sigma-delta modulator; Low power; DVB-H; BROADCAST;

D O I：

10.1007/s10470-010-9538-9

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This low-power Sigma Delta modulator targets the DVB-H requirements and achieves about 10 bit with 6-MHz signal band. Suitable topological modifications enable the realization of a third order modulator with two op-amps. Moreover, a technique for swing reduction of the last op-amp strongly reduces the number of comparators in the quantizer. The power reduction techniques limit the consumption to 6.18 mW, thus yielding a FoM of 0.58 pJ/conversion. The area of the circuit, fabricated with a 0.18-mu m analog CMOS technology, is 0.32 mm(2). Experimental measurements confirm the behavioral study made accounting for the op-amps limitations.

引用

页码：381 / 388

页数：8

共 12 条

[1]

[Anonymous], 1996, DELTA SIGMA DATA CON

[2] Third-Order ΣΔ Modulator with 61-dB SNR and 6-MHz Bandwidth Consuming 6 mW [J].

Bonizzoni, Edoardo ;

Perez, Aldo Pena ;

Maloberti, Franco ;

Garcia-Andrade, Miguel .

ESSCIRC 2008: PROCEEDINGS OF THE 34TH EUROPEAN SOLID-STATE CIRCUITS CONFERENCE, 2008, :218-+

[3] DVB-H: Digital broadcast services to handheld devices [J].

Faria, G ;

Henriksson, JA ;

Stare, E ;

Talmola, P .

PROCEEDINGS OF THE IEEE, 2006, 94 (01) :194-209

[4] Affordable mobile TV services in hybrid cellular and DVB-H systems [J].

Gomez-Barquero, David ;

Cardona, Narcis ;

Bria, Aurelian ;

Zander, Jens .

IEEE NETWORK, 2007, 21 (02) :34-40

[5]

Koh Jinseok., 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, V1, P170

[6] DVB-H and IP datacast - Broadcast to handheld devices [J].

Kornfeld, Michael ;

May, Gunther .

IEEE TRANSACTIONS ON BROADCASTING, 2007, 53 (01) :161-170

[7] MULTIBIT SIGMA-DELTA A/D CONVERTER INCORPORATING A NOVEL CLASS OF DYNAMIC ELEMENT MATCHING TECHNIQUES [J].

LEUNG, BH ;

SUTARJA, S .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1992, 39 (01) :35-51

[8] 74 dB SNDR Multi-Loop Sturdy-MASH Delta-Sigma Modulator Using 35 dB Open-Loop Opamp Gain [J].

Maghari, Nima ;

Kwon, Sunwoo ;

Moon, Un-Ku .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2009, 44 (08) :2212-2221

[9] Behavioral modeling of switched-capacitor Sigma-Delta modulators [J].

Malcovati, P ;

Brigati, S ;

Francesconi, F ;

Maloberti, F ;

Cusinato, P ;

Baschirotto, A .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 2003, 50 (03) :352-364

[10] A low-voltage low-power sigma-delta modulator for broadband analog-to-digital conversion [J].

Nam, KY ;

Lee, SM ;

Su, DK ;

Wooley, BA .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2005, 40 (09) :1855-1864

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