An architecture-reconfigurable 3b-to-7b 4GS/s-to-1.5GS/s ADC using subtractor interleaving

Ramy Yousry, Ming Shuan Chen, Mau-Chung Chang, Chih Kong Ken Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This paper introduces the design of a high-speed reconfigurable analog-to-digital converter in 65-nm CMOS. Accuracy requirements are met without compromising performance by means of digital calibration and smart architecture selection. Partial interleaving architecture and the introduction of a current-steering DAC and an open-loop residue amplifier are proposed to relax the MDAC settling at minimal overhead. Dynamic thresholds adjustment for the sub-ADCs is employed both to calibrate the ADC offset mismatches and to correct for the residue amplifier nonidealities. The ADC covers a resolution range from 3-b to 7-b at sampling rates from 4GS/s to 1.5GS/s. The worst case DNL and INL are ±0.45LSB and ±0.66LSB respectively. The ADC achieves a figure-of-merit of 0.46pJ/conv at 7-b and occupies an active area of 0.15mm 2.

Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
Pages285-288
Number of pages4
DOIs
StatePublished - 1 Dec 2013
Event2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013 - Singapore, Singapore
Duration: 11 Nov 201313 Nov 2013

Publication series

NameProceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013

Conference

Conference2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
CountrySingapore
CitySingapore
Period11/11/1313/11/13

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    Yousry, R., Chen, M. S., Chang, M-C., & Yang, C. K. K. (2013). An architecture-reconfigurable 3b-to-7b 4GS/s-to-1.5GS/s ADC using subtractor interleaving. In Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013 (pp. 285-288). [6691038] (Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013). https://doi.org/10.1109/ASSCC.2013.6691038