Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM

Qilong Liu; Lucien J. Breems; Shagun  Bajoria; Muhammed Bolatkale; Chenming Zhang; Georgi I. Radulov

doi:10.1109/ISCAS45731.2020.9180951

Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM

Qilong Liu, Lucien J. Breems, Shagun Bajoria, Muhammed Bolatkale, Chenming Zhang, Georgi I. Radulov

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

4 Citations (Scopus)

2 Downloads (Pure)

Abstract

This paper analyzes the error mechanisms that limit the dynamic range (DR) of wide-bandwidth, low-OSR continuous-time (CT) multi-stage noise-shaping (MASH) ΔΣM and proposes a tool, the Signal Leakage Function (SLF), to optimize the architecture, and hence improving DR. The SLF provides new insights on finding the key parameters which influence the inter-stage signal leakage and thus the inter-stage gain (IG). These insights would lead not only to increasing the overall dynamic range in a very power-efficient way, but also decreasing the performance sensitivity to mismatches and other variations.

Original language	English
Title of host publication	2020 IEEE International Symposium on Circuits and Systems (ISCAS)
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	5
ISBN (Electronic)	9781728133201
ISBN (Print)	978-1-7281-3320-1
DOIs	https://doi.org/10.1109/ISCAS45731.2020.9180951
Publication status	Published - 28 Sept 2020
Event	52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online, Sevilla, Spain Duration: 10 Oct 2020 → 21 Oct 2020

Conference

Conference	52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
Country/Territory	Spain
City	Sevilla
Period	10/10/20 → 21/10/20

Keywords

signal leakage function
continuous-time Delta Sigma Modulator
Multi-stage noise-shaping Delta Sigma Modulator
Analog-to-Digital Converters
Sigma-Delta ADC

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10.1109/ISCAS45731.2020.9180951

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title = "Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM",

abstract = "This paper analyzes the error mechanisms that limit the dynamic range (DR) of wide-bandwidth, low-OSR continuous-time (CT) multi-stage noise-shaping (MASH) ΔΣM and proposes a tool, the Signal Leakage Function (SLF), to optimize the architecture, and hence improving DR. The SLF provides new insights on finding the key parameters which influence the inter-stage signal leakage and thus the inter-stage gain (IG). These insights would lead not only to increasing the overall dynamic range in a very power-efficient way, but also decreasing the performance sensitivity to mismatches and other variations.",

keywords = "signal leakage function, continuous-time Delta Sigma Modulator, Multi-stage noise-shaping Delta Sigma Modulator, Analog-to-Digital Converters, Sigma-Delta ADC",

author = "Qilong Liu and Breems, {Lucien J.} and Shagun Bajoria and Muhammed Bolatkale and Chenming Zhang and Radulov, {Georgi I.}",

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Liu, Q , Breems, LJ, Bajoria, S, Bolatkale, M, Zhang, C & Radulov, GI 2020, Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM. in 2020 IEEE International Symposium on Circuits and Systems (ISCAS)., 9180951, Institute of Electrical and Electronics Engineers, 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020, Sevilla, Spain, 10/10/20. https://doi.org/10.1109/ISCAS45731.2020.9180951

Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM. / Liu, Qilong ; Breems, Lucien J.; Bajoria, Shagun et al.

2020 IEEE International Symposium on Circuits and Systems (ISCAS). Institute of Electrical and Electronics Engineers, 2020. 9180951.

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

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AB - This paper analyzes the error mechanisms that limit the dynamic range (DR) of wide-bandwidth, low-OSR continuous-time (CT) multi-stage noise-shaping (MASH) ΔΣM and proposes a tool, the Signal Leakage Function (SLF), to optimize the architecture, and hence improving DR. The SLF provides new insights on finding the key parameters which influence the inter-stage signal leakage and thus the inter-stage gain (IG). These insights would lead not only to increasing the overall dynamic range in a very power-efficient way, but also decreasing the performance sensitivity to mismatches and other variations.

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Analysis of the inter-stage signal leakage in wide BW low OSR and high DR CT MASH ΔΣM

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Keywords

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