Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters

Astria Nur Irfansyah; Torsten Lehmann; Julian Jenkins; Tara Julia Hamilton

doi:10.1109/MWSCAS.2013.6674642

Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters

Astria Nur Irfansyah, Torsten Lehmann, Julian Jenkins, Tara Julia Hamilton

School of Engineering, Design & Built Environment

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

1 Citation (Scopus)

Abstract

This paper analyses the design trade-off of a high-output impedance current mirror structure used as a current-steering DAC in a sigma-delta modulation DAC with dynamic element matching. The aim is to provide a design strategy with transistor sizing guidelines leading to the achievement of high static linearity and high accuracy given specific accuracy, load resistance, and voltage swing requirement. Challenging factors limiting the circuit static linearity are described and shown. A test chip implemented in 180nm CMOS process has been designed and fabricated, with simulated results showing static linearity of a 16-bit DAC has been achieved.

Original language	English
Title of host publication	Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio
Publisher	Institute of Electrical and Electronics Engineers
Pages	289-292
Number of pages	4
ISBN (Print)	9781479900664
DOIs	https://doi.org/10.1109/MWSCAS.2013.6674642
Publication status	Published - 2013
Event	Midwest Symposium on Circuits and Systems - Duration: 4 Aug 2013 → …

Conference

Conference	Midwest Symposium on Circuits and Systems
Period	4/08/13 → …

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10.1109/MWSCAS.2013.6674642

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Irfansyah, A. N., Lehmann, T., Jenkins, J., & Hamilton, T. J. (2013). Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters. In Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio (pp. 289-292). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/MWSCAS.2013.6674642

@inproceedings{25967b50c3ff439487597ffc8270a76a,

title = "Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters",

abstract = "This paper analyses the design trade-off of a high-output impedance current mirror structure used as a current-steering DAC in a sigma-delta modulation DAC with dynamic element matching. The aim is to provide a design strategy with transistor sizing guidelines leading to the achievement of high static linearity and high accuracy given specific accuracy, load resistance, and voltage swing requirement. Challenging factors limiting the circuit static linearity are described and shown. A test chip implemented in 180nm CMOS process has been designed and fabricated, with simulated results showing static linearity of a 16-bit DAC has been achieved.",

author = "Irfansyah, {Astria Nur} and Torsten Lehmann and Julian Jenkins and Hamilton, {Tara Julia}",

year = "2013",

doi = "10.1109/MWSCAS.2013.6674642",

language = "English",

isbn = "9781479900664",

pages = "289--292",

booktitle = "Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio",

publisher = "Institute of Electrical and Electronics Engineers",

note = "Midwest Symposium on Circuits and Systems ; Conference date: 04-08-2013",

}

Irfansyah, AN, Lehmann, T, Jenkins, J & Hamilton, TJ 2013, Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters. in Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio. Institute of Electrical and Electronics Engineers, pp. 289-292, Midwest Symposium on Circuits and Systems, 4/08/13. https://doi.org/10.1109/MWSCAS.2013.6674642

Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters. / Irfansyah, Astria Nur; Lehmann, Torsten; Jenkins, Julian et al.
Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio. Institute of Electrical and Electronics Engineers, 2013. p. 289-292.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

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AU - Irfansyah, Astria Nur

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AU - Jenkins, Julian

AU - Hamilton, Tara Julia

PY - 2013

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N2 - This paper analyses the design trade-off of a high-output impedance current mirror structure used as a current-steering DAC in a sigma-delta modulation DAC with dynamic element matching. The aim is to provide a design strategy with transistor sizing guidelines leading to the achievement of high static linearity and high accuracy given specific accuracy, load resistance, and voltage swing requirement. Challenging factors limiting the circuit static linearity are described and shown. A test chip implemented in 180nm CMOS process has been designed and fabricated, with simulated results showing static linearity of a 16-bit DAC has been achieved.

AB - This paper analyses the design trade-off of a high-output impedance current mirror structure used as a current-steering DAC in a sigma-delta modulation DAC with dynamic element matching. The aim is to provide a design strategy with transistor sizing guidelines leading to the achievement of high static linearity and high accuracy given specific accuracy, load resistance, and voltage swing requirement. Challenging factors limiting the circuit static linearity are described and shown. A test chip implemented in 180nm CMOS process has been designed and fabricated, with simulated results showing static linearity of a 16-bit DAC has been achieved.

UR - http://handle.uws.edu.au:8081/1959.7/543964

UR - http://secs.ceas.uc.edu/mwscas2013/

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DO - 10.1109/MWSCAS.2013.6674642

M3 - Conference Paper

SN - 9781479900664

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EP - 292

BT - Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio

PB - Institute of Electrical and Electronics Engineers

T2 - Midwest Symposium on Circuits and Systems

Y2 - 4 August 2013

ER -

Irfansyah AN, Lehmann T, Jenkins J, Hamilton TJ. Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters. In Proceedings of the 56th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2013), 4-7 August 2013, Columbus, Ohio. Institute of Electrical and Electronics Engineers. 2013. p. 289-292 doi: 10.1109/MWSCAS.2013.6674642

Design strategy for enhanced output impedance current-steering DAC in sigma-delta converters

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