A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator

Chien Hung Kuo; Shuo Chau Chen; Kang Shuo Chang

A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator

Chien Hung Kuo^*, Shuo Chau Chen, Kang Shuo Chang

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In this paper, a low-voltage switched-opamp-based 2-2 cascaded switehed-capacitor delta-sigma modulator in a 0.18-μm 1P6M CMOS technology is presented. The fourth-order modulator is realized using a low-distortion feed-forward topology to promote its linearity and dynamic range. The presented modulator can be operated in a wide range of supply voltage from 1.8V to 0.9V. The switched-opamp with double output stage is utilized to combine with the double-sampling technique so that the effective clocking rate can be reduced, thus also relaxing the requirement of opamp. The modulator achieves a 91 dB of SNDR within 24 kHz signal bandwidth under a 2 MHz of clocking rate. The total power consumption of this modulator is 0.86 mW under a 1V supply voltage and the chip core area is 1.57mm².

Original language	English
Title of host publication	Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006
Pages	199-204
Number of pages	6
Publication status	Published - 2006
Externally published	Yes
Event	4th IASTED International Conference on Circuits, Signals, and Systems, CSS 2006 - San Francisco, CA, United States Duration: 2006 Nov 20 → 2006 Nov 22

Publication series

Name	Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006

Other

Other	4th IASTED International Conference on Circuits, Signals, and Systems, CSS 2006
Country/Territory	United States
City	San Francisco, CA
Period	2006/11/20 → 2006/11/22

Keywords

Analog-to-digital converters
Delta-sigma modulators
Low-voltage
Switched-opamp
Switehed-capacitor circuits

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

Cite this

A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator. / Kuo, Chien Hung; Chen, Shuo Chau; Chang, Kang Shuo.
Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006. 2006. p. 199-204 (Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kuo, CH, Chen, SC & Chang, KS 2006, A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator. in Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006. Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006, pp. 199-204, 4th IASTED International Conference on Circuits, Signals, and Systems, CSS 2006, San Francisco, CA, United States, 2006/11/20.

Kuo, Chien Hung ; Chen, Shuo Chau ; Chang, Kang Shuo. / A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator. Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006. 2006. pp. 199-204 (Proceedings of the Fourth IASTED International Conference on Circuits, Signals, and Systems, CSS 2006).

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abstract = "In this paper, a low-voltage switched-opamp-based 2-2 cascaded switehed-capacitor delta-sigma modulator in a 0.18-μm 1P6M CMOS technology is presented. The fourth-order modulator is realized using a low-distortion feed-forward topology to promote its linearity and dynamic range. The presented modulator can be operated in a wide range of supply voltage from 1.8V to 0.9V. The switched-opamp with double output stage is utilized to combine with the double-sampling technique so that the effective clocking rate can be reduced, thus also relaxing the requirement of opamp. The modulator achieves a 91 dB of SNDR within 24 kHz signal bandwidth under a 2 MHz of clocking rate. The total power consumption of this modulator is 0.86 mW under a 1V supply voltage and the chip core area is 1.57mm2.",

keywords = "Analog-to-digital converters, Delta-sigma modulators, Low-voltage, Switched-opamp, Switehed-capacitor circuits",

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AU - Kuo, Chien Hung

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N2 - In this paper, a low-voltage switched-opamp-based 2-2 cascaded switehed-capacitor delta-sigma modulator in a 0.18-μm 1P6M CMOS technology is presented. The fourth-order modulator is realized using a low-distortion feed-forward topology to promote its linearity and dynamic range. The presented modulator can be operated in a wide range of supply voltage from 1.8V to 0.9V. The switched-opamp with double output stage is utilized to combine with the double-sampling technique so that the effective clocking rate can be reduced, thus also relaxing the requirement of opamp. The modulator achieves a 91 dB of SNDR within 24 kHz signal bandwidth under a 2 MHz of clocking rate. The total power consumption of this modulator is 0.86 mW under a 1V supply voltage and the chip core area is 1.57mm2.

AB - In this paper, a low-voltage switched-opamp-based 2-2 cascaded switehed-capacitor delta-sigma modulator in a 0.18-μm 1P6M CMOS technology is presented. The fourth-order modulator is realized using a low-distortion feed-forward topology to promote its linearity and dynamic range. The presented modulator can be operated in a wide range of supply voltage from 1.8V to 0.9V. The switched-opamp with double output stage is utilized to combine with the double-sampling technique so that the effective clocking rate can be reduced, thus also relaxing the requirement of opamp. The modulator achieves a 91 dB of SNDR within 24 kHz signal bandwidth under a 2 MHz of clocking rate. The total power consumption of this modulator is 0.86 mW under a 1V supply voltage and the chip core area is 1.57mm2.

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KW - Low-voltage

KW - Switched-opamp

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ER -

A 91dB SOP-based low-voltage low-distortion fourth-order 2-2 cascaded delta-sigma modulator

Abstract

Publication series

Other

Keywords

ASJC Scopus subject areas

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