@inproceedings{541e437035d0407aaaa0616fad2eb366,
title = "An incremental analog-to-digital converter with multi-step extended counting for sensor interfaces",
abstract = "Integrated sensor interface circuits require power-efficient high-accuracy data converters. In many applications, the best choice is the incremental A/D converters (IADCs) incorporating extended counting. In this paper, we discuss the operation and design of single- and multi-stage IADCs. By using a direct-input feed-forward modulator, the IADC accumulates the residue voltage, and it is easy to implement a hybrid scheme of extended counting. Several hybrid schemes are reviewed and discussed. The energy efficiency c an be improved significantly by re-using the hardware to perform extended counting. A multi-step extended counting scheme is proposed for high-resolution power-efficient conversion. A design example with OSR=320 is described in this paper. By using multi-step extended counting, the SQNR performance is boosted to 108 dB, which is much better than that of a second-order IADC of the same OSR, 94 dB.",
keywords = "analog-to-digital converter (ADC), delta sigma (ΔΣ), extended-counting, incremental data converters, measurement and instrumentation, multi-stage noise shaping (MASH), multi-step, sensor interface, time-domain analysis, two step",
author = "Chia-Hung Chen and Yi Zhang and Tao He and Temes, {Gabor C.}",
year = "2016",
month = jul,
day = "29",
doi = "10.1109/ISCAS.2016.7527174",
language = "English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "77--80",
booktitle = "ISCAS 2016 - IEEE International Symposium on Circuits and Systems",
address = "United States",
note = "2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 ; Conference date: 22-05-2016 Through 25-05-2016",
}
