A 12-bit cyclic ADC with random feedback capacitor interchanging technique

Chun Hsien Kuo, Tso Hung Fan, Tai-Haur Kuo

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

2 Citations (Scopus)

Abstract

This work implements a 12-bit cyclic ADC with random feedback-capacitor interchanging (RFCI) technique to reduce the harmonic distortion caused by capacitor mismatch. Without sacrificing SNDR, the RFCI technique can improves upon the SFDR of conventional ADCs. The ADC is realized with a reconfigurable architecture to demonstrate the effect of the RFCI technique. The performance comparison between the RFCI and conventional techniques is obtained using the same cyclic ADC. The ADC uses simple clock-timing control circuits to switch arrangements of capacitor connection. This capacitor swapping architecture does not need additional complicated digital calibration circuits. Hence, it is suitable for low-power and low-cost applications. This single chip occupies 0.63-mm2 active area in a 0.35-μm, double-poly, four-metal CMOS process. Measurements show that the SFDR and SNDR obtained using the RFCI technique are 7 dB and 0.5 dB higher than those obtained using the conventional technique, respectively, which indicates the advantages of the RFCI technique.

Original languageEnglish
Title of host publication2009 International SoC Design Conference, ISOCC 2009
Pages508-511
Number of pages4
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 International SoC Design Conference, ISOCC 2009 - Busan, Korea, Republic of
Duration: 2009 Nov 222009 Nov 24

Publication series

Name2009 International SoC Design Conference, ISOCC 2009

Other

Other2009 International SoC Design Conference, ISOCC 2009
CountryKorea, Republic of
CityBusan
Period09-11-2209-11-24

Fingerprint

Capacitors
Feedback
Reconfigurable architectures
Networks (circuits)
Harmonic distortion
Clocks
Switches
Calibration
Metals
Costs

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Kuo, C. H., Fan, T. H., & Kuo, T-H. (2009). A 12-bit cyclic ADC with random feedback capacitor interchanging technique. In 2009 International SoC Design Conference, ISOCC 2009 (pp. 508-511). [5423834] (2009 International SoC Design Conference, ISOCC 2009). https://doi.org/10.1109/SOCDC.2009.5423834
Kuo, Chun Hsien ; Fan, Tso Hung ; Kuo, Tai-Haur. / A 12-bit cyclic ADC with random feedback capacitor interchanging technique. 2009 International SoC Design Conference, ISOCC 2009. 2009. pp. 508-511 (2009 International SoC Design Conference, ISOCC 2009).
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Kuo, CH, Fan, TH & Kuo, T-H 2009, A 12-bit cyclic ADC with random feedback capacitor interchanging technique. in 2009 International SoC Design Conference, ISOCC 2009., 5423834, 2009 International SoC Design Conference, ISOCC 2009, pp. 508-511, 2009 International SoC Design Conference, ISOCC 2009, Busan, Korea, Republic of, 09-11-22. https://doi.org/10.1109/SOCDC.2009.5423834

A 12-bit cyclic ADC with random feedback capacitor interchanging technique. / Kuo, Chun Hsien; Fan, Tso Hung; Kuo, Tai-Haur.

2009 International SoC Design Conference, ISOCC 2009. 2009. p. 508-511 5423834 (2009 International SoC Design Conference, ISOCC 2009).

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

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Kuo CH, Fan TH, Kuo T-H. A 12-bit cyclic ADC with random feedback capacitor interchanging technique. In 2009 International SoC Design Conference, ISOCC 2009. 2009. p. 508-511. 5423834. (2009 International SoC Design Conference, ISOCC 2009). https://doi.org/10.1109/SOCDC.2009.5423834