Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers

Matthias Wagner; Oliver Lang; Esmaeil Kavousi Ghafi; Andreas Schwarz; Mario Huemer

doi:10.1109/PRIME58259.2023.10161738

Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers

Matthias Wagner
, Oliver Lang
, Esmaeil Kavousi Ghafi
, Andreas Schwarz
, Mario Huemer

Institute of Signal Processing

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

Abstract

High-speed pipelined analog-to-digital converters (ADCs) are central components in many signal processing systems. Besides a high sampling rate, linearity is a key performance criterion for ADCs. The ADC’s linearity can be drastically increased with calibration techniques, which are heavily investigated. On this matter, the homogeneity enforced calibration (HEC) approach was recently introduced, covering gain and digital-to-analog converter (DAC) mismatches of a pipelined ADC. The HEC approach enables short calibration times, and high calibration performance without the need for a precisely known test signal. In this work, we improve the HEC approach such that nonlinear stage amplifiers are calibrated besides gain and DAC mismatches. The calibration performance of the improved HEC approach is verified with behavioral simulations and shows a high spuriousfree dynamic range (SFDR) improvement of 42.7 dB and a low remaining integral nonlinearity (INL).

Original language	English
Title of host publication	Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023)
Publisher	IEEE
Pages	153-156
Number of pages	4
ISBN (Electronic)	9798350303209
ISBN (Print)	979-8-3503-0320-9
DOIs	https://doi.org/10.1109/PRIME58259.2023.10161738
Publication status	Published - Jun 2023

Publication series

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

Fields of science

202036 Sensor systems
202 Electrical Engineering, Electronics, Information Engineering
202015 Electronics
202022 Information technology
202023 Integrated circuits
202028 Microelectronics
202037 Signal processing

JKU Focus areas

Digital Transformation

Access to Document

10.1109/PRIME58259.2023.10161738

Cite this

Wagner, M., Lang, O., Kavousi Ghafi, E., Schwarz, A., & Huemer, M. (2023). Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers. In Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023) (pp. 153-156). (PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings). IEEE. https://doi.org/10.1109/PRIME58259.2023.10161738

Wagner, Matthias ; Lang, Oliver ; Kavousi Ghafi, Esmaeil et al. / Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers. Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023). IEEE, 2023. pp. 153-156 (PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings).

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title = "Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers",

abstract = "High-speed pipelined analog-to-digital converters (ADCs) are central components in many signal processing systems. Besides a high sampling rate, linearity is a key performance criterion for ADCs. The ADC{\textquoteright}s linearity can be drastically increased with calibration techniques, which are heavily investigated. On this matter, the homogeneity enforced calibration (HEC) approach was recently introduced, covering gain and digital-to-analog converter (DAC) mismatches of a pipelined ADC. The HEC approach enables short calibration times, and high calibration performance without the need for a precisely known test signal. In this work, we improve the HEC approach such that nonlinear stage amplifiers are calibrated besides gain and DAC mismatches. The calibration performance of the improved HEC approach is verified with behavioral simulations and shows a high spuriousfree dynamic range (SFDR) improvement of 42.7 dB and a low remaining integral nonlinearity (INL).",

author = "Matthias Wagner and Oliver Lang and \{Kavousi Ghafi\}, Esmaeil and Andreas Schwarz and Mario Huemer",

year = "2023",

month = jun,

doi = "10.1109/PRIME58259.2023.10161738",

language = "English",

isbn = "979-8-3503-0320-9",

series = "PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings",

publisher = "IEEE",

pages = "153--156",

booktitle = "Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023)",

}

Wagner, M , Lang, O, Kavousi Ghafi, E, Schwarz, A & Huemer, M 2023, Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers. in Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023). PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings, IEEE, pp. 153-156. https://doi.org/10.1109/PRIME58259.2023.10161738

Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers. / Wagner, Matthias ; Lang, Oliver; Kavousi Ghafi, Esmaeil et al.
Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023). IEEE, 2023. p. 153-156 (PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings).

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

TY - GEN

T1 - Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers

AU - Wagner, Matthias

AU - Lang, Oliver

AU - Kavousi Ghafi, Esmaeil

AU - Schwarz, Andreas

AU - Huemer, Mario

PY - 2023/6

Y1 - 2023/6

N2 - High-speed pipelined analog-to-digital converters (ADCs) are central components in many signal processing systems. Besides a high sampling rate, linearity is a key performance criterion for ADCs. The ADC’s linearity can be drastically increased with calibration techniques, which are heavily investigated. On this matter, the homogeneity enforced calibration (HEC) approach was recently introduced, covering gain and digital-to-analog converter (DAC) mismatches of a pipelined ADC. The HEC approach enables short calibration times, and high calibration performance without the need for a precisely known test signal. In this work, we improve the HEC approach such that nonlinear stage amplifiers are calibrated besides gain and DAC mismatches. The calibration performance of the improved HEC approach is verified with behavioral simulations and shows a high spuriousfree dynamic range (SFDR) improvement of 42.7 dB and a low remaining integral nonlinearity (INL).

AB - High-speed pipelined analog-to-digital converters (ADCs) are central components in many signal processing systems. Besides a high sampling rate, linearity is a key performance criterion for ADCs. The ADC’s linearity can be drastically increased with calibration techniques, which are heavily investigated. On this matter, the homogeneity enforced calibration (HEC) approach was recently introduced, covering gain and digital-to-analog converter (DAC) mismatches of a pipelined ADC. The HEC approach enables short calibration times, and high calibration performance without the need for a precisely known test signal. In this work, we improve the HEC approach such that nonlinear stage amplifiers are calibrated besides gain and DAC mismatches. The calibration performance of the improved HEC approach is verified with behavioral simulations and shows a high spuriousfree dynamic range (SFDR) improvement of 42.7 dB and a low remaining integral nonlinearity (INL).

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ER -

Wagner M , Lang O, Kavousi Ghafi E, Schwarz A, Huemer M. Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers. In Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023). IEEE. 2023. p. 153-156. (PRIME 2023 - 18th International Conference on Ph.D Research in Microelectronics and Electronics, Proceedings). doi: 10.1109/PRIME58259.2023.10161738

Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers

Abstract

Publication series

Fields of science

JKU Focus areas

Access to Document

Other files and links

LCM - Center for Symbiotic Mechatronics - Förderphase 2

DSP-Based Calibration and Linearity Testing in Automotive FMCW Radar Receivers with Low-Quality Test Signals

Cite this

Homogeneity Enforced Calibration for Pipelined ADCs Including Nonlinear Stage Amplifiers

Abstract

Publication series

Fields of science

JKU Focus areas

Access to Document

Other files and links

Projects

LCM - Center for Symbiotic Mechatronics - Förderphase 2

Research output

DSP-Based Calibration and Linearity Testing in Automotive FMCW Radar Receivers with Low-Quality Test Signals

Cite this