A 70 dB DR 10 b 0-to-80 MS/s Current-Integrating SAR ADC With Adaptive Dynamic Range

Badr Malki; Takaya Yamamoto; Bob Verbruggen; Piet Wambacq; J. Craninckx

doi:10.1109/JSSC.2014.2309086

A 70 dB DR 10 b 0-to-80 MS/s Current-Integrating SAR ADC With Adaptive Dynamic Range

Badr Malki
, Takaya Yamamoto
, Bob Verbruggen
, Piet Wambacq
, J. Craninckx

Electronics and Informatics

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

A charge-domain SAR ADC is presented which integrates the current of a variable-gain transconductor on its sampling capacitor, rather than being driven by a power hungry voltage buffer. The sampling circuit uses nonlinear MOS capacitors as sampling capacitor for passive amplification to relax the comparator noise requirements without compromising linearity. The prototype in 40 nm low power CMOS process consists of a 1.1-17.6 mS transconductor, combined with a 10 b 0-80 MS/s charge-sharing SAR ADC. It achieves 70 dB DR while consuming less than 5.45 mA from a 1.1 V supply and achieves a peak SNDR of 56.85 dB at 40 MS/s.

Original language	English
Pages (from-to)	1173 - 1183
Journal	IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume	49
Issue number	5
DOIs	https://doi.org/10.1109/JSSC.2014.2309086
Publication status	Published - 5 May 2014

Keywords

ADC charge based buffer receiver passive amplifica

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10.1109/JSSC.2014.2309086

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6763107

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SRP19: Strategic Research Programme: Center for model-based system improvement - From Computer-Aided Engineering to Model-Aided Engineering
Vandersteen, G. (Administrative Promotor), Rolain, Y. (Co-Promotor), Wambacq, P. (Co-Promotor), Kuijk, M. (Co-Promotor), Vandersteen, G. (Administrative Promotor), Rolain, Y. (Co-Promotor), Wambacq, P. (Co-Promotor) & Kuijk, M. (Co-Promotor)
1/11/12 → 31/10/24
Project: Fundamental

Cite this

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AU - Craninckx, J.

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A 70 dB DR 10 b 0-to-80 MS/s Current-Integrating SAR ADC With Adaptive Dynamic Range

Abstract

Keywords

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Projects

SRP19: Strategic Research Programme: Center for model-based system improvement - From Computer-Aided Engineering to Model-Aided Engineering

Cite this