Time-to-digital converter based on time difference amplifier with non-linearity calibration

This paper proposes a time-to-digital converter (TDC) utilizing the cascaded time difference amplifier(TDA) and shows measurement results with 0.18um CMOS. The proposed TDC operates in two modes, a wide input range mode and a fine time resolution mode. We employ a non-linearity calibration technique...

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Bibliographic Details
Published in2010 Proceedings of ESSCIRC pp. 266 - 269
Main Authors Mandai, S, Iizuka, T, Nakura, T, Ikeda, M, Asada, K
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2010
Subjects
CMOS integrated circuits
Converters
Delay
Gain control
Linearity
Signal resolution
Table lookup
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Summary:This paper proposes a time-to-digital converter (TDC) utilizing the cascaded time difference amplifier(TDA) and shows measurement results with 0.18um CMOS. The proposed TDC operates in two modes, a wide input range mode and a fine time resolution mode. We employ a non-linearity calibration technique based on lookup table. The wide input range mode shows 10.2ps time resolution over 1.3ns input range with DNL and INL of +0.8/-0.7LSB and +0.8/-0.4LSB, respectively. The fine time resolution mode shows 1.0ps time resolution over 60ps input range with DNL and INL of +0.9/-0.9LSB and +0.8/-1.0LSB, respectively.
ISBN:9781424466627
1424466628
ISSN:1930-8833
2643-1319
DOI:10.1109/ESSCIRC.2010.5619878