A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators

Inês Nogueira de Brito; Nuno Paulino; Blazej Nowacki; Tommy Mullane

doi:10.1109/PRIME58259.2023.10161912

A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators

Inês Nogueira de Brito, Nuno Paulino, Blazej Nowacki, Tommy Mullane

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

1 Citation (Scopus)

Abstract

This paper describes a calibration method for a 2-1 MASH ΣM using passive integrators. Due to process variations the RC product can vary, causing a degradation in circuit performance. Therefore, a circuit measuring the RC time constant and converting it into a digital coefficient, was designed. This coefficient is used to calibrate the reference voltage of the ΣM to decrease the variability of the feedback signal and to calibrate the digital cancellation logic (DCL), improving quantization noise cancellation. Electrical transient noise simulations results of the ΣM with calibration prove validity of the presented method showing performance improvement in worst corners.

Original language	English
Title of host publication	PRIME 2023
Subtitle of host publication	18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	257-260
Number of pages	4
ISBN (Electronic)	979-8-3503-0320-9
ISBN (Print)	979-8-3503-0321-6
DOIs	https://doi.org/10.1109/PRIME58259.2023.10161912
Publication status	Published - 2023
Event	18th International Conference on Ph.D Research in Microelectronics and Electronics, PRIME 2023 - Valencia, Spain Duration: 18 Jun 2023 → 21 Jun 2023

Conference

Conference	18th International Conference on Ph.D Research in Microelectronics and Electronics, PRIME 2023
Country/Territory	Spain
City	Valencia
Period	18/06/23 → 21/06/23

Keywords

2-1 MASH ΣΤM
Passive Integrators
RC time constant calibration

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10.1109/PRIME58259.2023.10161912

Cite this

de Brito, I. N., Paulino, N., Nowacki, B., & Mullane, T. (2023). A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators. In PRIME 2023: 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings (pp. 257-260). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/PRIME58259.2023.10161912

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title = "A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators",

abstract = "This paper describes a calibration method for a 2-1 MASH ΣM using passive integrators. Due to process variations the RC product can vary, causing a degradation in circuit performance. Therefore, a circuit measuring the RC time constant and converting it into a digital coefficient, was designed. This coefficient is used to calibrate the reference voltage of the ΣM to decrease the variability of the feedback signal and to calibrate the digital cancellation logic (DCL), improving quantization noise cancellation. Electrical transient noise simulations results of the ΣM with calibration prove validity of the presented method showing performance improvement in worst corners.",

keywords = "2-1 MASH ΣΤM, Passive Integrators, RC time constant calibration",

author = "{de Brito}, {In{\^e}s Nogueira} and Nuno Paulino and Blazej Nowacki and Tommy Mullane",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 18th International Conference on Ph.D Research in Microelectronics and Electronics, PRIME 2023 ; Conference date: 18-06-2023 Through 21-06-2023",

year = "2023",

doi = "10.1109/PRIME58259.2023.10161912",

language = "English",

isbn = "979-8-3503-0321-6",

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booktitle = "PRIME 2023",

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de Brito, IN , Paulino, N, Nowacki, B & Mullane, T 2023, A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators. in PRIME 2023: 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings. Institute of Electrical and Electronics Engineers (IEEE), pp. 257-260, 18th International Conference on Ph.D Research in Microelectronics and Electronics, PRIME 2023, Valencia, Spain, 18/06/23. https://doi.org/10.1109/PRIME58259.2023.10161912

A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators. / de Brito, Inês Nogueira ; Paulino, Nuno; Nowacki, Blazej et al.
PRIME 2023: 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings. Institute of Electrical and Electronics Engineers (IEEE), 2023. p. 257-260.

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

TY - GEN

T1 - A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators

AU - de Brito, Inês Nogueira

AU - Paulino, Nuno

AU - Nowacki, Blazej

AU - Mullane, Tommy

PY - 2023

Y1 - 2023

N2 - This paper describes a calibration method for a 2-1 MASH ΣM using passive integrators. Due to process variations the RC product can vary, causing a degradation in circuit performance. Therefore, a circuit measuring the RC time constant and converting it into a digital coefficient, was designed. This coefficient is used to calibrate the reference voltage of the ΣM to decrease the variability of the feedback signal and to calibrate the digital cancellation logic (DCL), improving quantization noise cancellation. Electrical transient noise simulations results of the ΣM with calibration prove validity of the presented method showing performance improvement in worst corners.

AB - This paper describes a calibration method for a 2-1 MASH ΣM using passive integrators. Due to process variations the RC product can vary, causing a degradation in circuit performance. Therefore, a circuit measuring the RC time constant and converting it into a digital coefficient, was designed. This coefficient is used to calibrate the reference voltage of the ΣM to decrease the variability of the feedback signal and to calibrate the digital cancellation logic (DCL), improving quantization noise cancellation. Electrical transient noise simulations results of the ΣM with calibration prove validity of the presented method showing performance improvement in worst corners.

KW - 2-1 MASH ΣΤM

KW - Passive Integrators

KW - RC time constant calibration

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U2 - 10.1109/PRIME58259.2023.10161912

DO - 10.1109/PRIME58259.2023.10161912

M3 - Conference contribution

AN - SCOPUS:85165033676

SN - 979-8-3503-0321-6

SP - 257

EP - 260

BT - PRIME 2023

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, PRIME 2023

Y2 - 18 June 2023 through 21 June 2023

ER -

A Calibration Scheme for a Sigma-Delta Modulator Using Passive Integrators

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