The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications

Ka Leong Tsang; Jie Yuan

doi:10.1109/DELTA.2008.121

The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications

Ka Leong Tsang, Jie Yuan

Office of the Dean of Engineering

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

Abstract

In this paper, a micropower current sample-and-hold front-end is designed for weak current bio-medical applications in a 0.35-μm standard CMOS process. The design reduces the distortion of the current-mode sample-and-hold stage by exploiting the exponential I-V relationship of weakly-inverted MOS transistors. The design and optimization process for the stage is introduced in the paper. With the optimized design, SPICE simulation shows that the sample-and-hold stage can achieve over 60dB SNDR at the sampling rate of 25kS/s, with the input signal at the Nyquist frequency of 12.4kHz. The input current range is 100nA. The power consumption of the stage is about 3.6μW.

Original language	English
Title of host publication	Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008
Pages	11-14
Number of pages	4
DOIs	https://doi.org/10.1109/DELTA.2008.121
Publication status	Published - 2008
Event	4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008 - Hong Kong, SAR, Hong Kong Duration: 23 Jan 2008 → 25 Jan 2008

Publication series

Name	Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008

Conference

Conference	4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008
Country/Territory	Hong Kong
City	Hong Kong, SAR
Period	23/01/08 → 25/01/08

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10.1109/DELTA.2008.121

Cite this

Tsang, K. L., & Yuan, J. (2008). The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications. In Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008 (pp. 11-14). Article 4459501 (Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008). https://doi.org/10.1109/DELTA.2008.121

Tsang, Ka Leong ; Yuan, Jie. / The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications. Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008. 2008. pp. 11-14 (Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008).

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title = "The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications",

abstract = "In this paper, a micropower current sample-and-hold front-end is designed for weak current bio-medical applications in a 0.35-μm standard CMOS process. The design reduces the distortion of the current-mode sample-and-hold stage by exploiting the exponential I-V relationship of weakly-inverted MOS transistors. The design and optimization process for the stage is introduced in the paper. With the optimized design, SPICE simulation shows that the sample-and-hold stage can achieve over 60dB SNDR at the sampling rate of 25kS/s, with the input signal at the Nyquist frequency of 12.4kHz. The input current range is 100nA. The power consumption of the stage is about 3.6μW.",

author = "Tsang, \{Ka Leong\} and Jie Yuan",

year = "2008",

doi = "10.1109/DELTA.2008.121",

language = "English",

isbn = "0769531105",

series = "Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008",

pages = "11--14",

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note = "4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008 ; Conference date: 23-01-2008 Through 25-01-2008",

}

Tsang, KL & Yuan, J 2008, The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications. in Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008., 4459501, Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008, pp. 11-14, 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008, Hong Kong, SAR, Hong Kong, 23/01/08. https://doi.org/10.1109/DELTA.2008.121

The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications. / Tsang, Ka Leong; Yuan, Jie.
Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008. 2008. p. 11-14 4459501 (Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

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AB - In this paper, a micropower current sample-and-hold front-end is designed for weak current bio-medical applications in a 0.35-μm standard CMOS process. The design reduces the distortion of the current-mode sample-and-hold stage by exploiting the exponential I-V relationship of weakly-inverted MOS transistors. The design and optimization process for the stage is introduced in the paper. With the optimized design, SPICE simulation shows that the sample-and-hold stage can achieve over 60dB SNDR at the sampling rate of 25kS/s, with the input signal at the Nyquist frequency of 12.4kHz. The input current range is 100nA. The power consumption of the stage is about 3.6μW.

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Tsang KL, Yuan J. The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications. In Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008. 2008. p. 11-14. 4459501. (Proceedings - 4th IEEE International Symposium on Electronic Design, Test and Applications, DELTA 2008). doi: 10.1109/DELTA.2008.121

The design and optimization of a 25kS/s 10bit micropower current S/H Cell for weak current bio-medical applications

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