@inproceedings{9d4b02efd140409684156326252541e2,
title = "A High Resolution Chemical Sensing Front-end with Integrated Sigma Delta Quantisation",
abstract = "In this paper we propose a novel high-resolution chemical sensing front-end with integrated sigma delta quantisation, and the chemical sensing capability is realised by the intrinsic passivation layer. A charge transfer amplifier with adjustable pre-amplification has been adopted to not only transmit the chemical signal to the next sampling stage, but also alleviate the kT/C thermal noise requirement. A pseudo-resistor is added to provide the DC operating points for the front-end, and it is implemented via a MOS transistor applying direct tunnelling effect to achieve huge resistance value. Simulation results show that through oversampling and noise shaping functions, the final resolution can reach up to 90.1 dB even with a 0.3V input signal, making it suitable for applications requiring high-precision chemical detection.",
keywords = "High Resolution, ISFET, Sigma Delta",
author = "Xiuli Zhang and Jinge Ma and Yuanqi Hu",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022 ; Conference date: 27-05-2022 Through 01-06-2022",
year = "2022",
doi = "10.1109/ISCAS48785.2022.9937843",
language = "英语",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2831--2835",
booktitle = "IEEE International Symposium on Circuits and Systems, ISCAS 2022",
address = "美国",
}