The Design and Optimization of a 25 kS/s 10 bit Micropower Current S/H Cell for Weak Current Bio-medical Applications

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4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008)

January 23-January 25

ISBN: 978-0-7695-3110-6

	ASCII Text	x
	Ka Leong Tsang, Jie Yuan, "The Design and Optimization of a 25 kS/s 10 bit Micropower Current S/H Cell for Weak Current Bio-medical Applications," Electronic Design, Test and Applications, IEEE International Workshop on, pp. 11-14, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008), 2008.

	BibTex	x
	@article{ 10.1109/DELTA.2008.121, author = {Ka Leong Tsang and Jie Yuan}, title = {The Design and Optimization of a 25 kS/s 10 bit Micropower Current S/H Cell for Weak Current Bio-medical Applications}, journal ={Electronic Design, Test and Applications, IEEE International Workshop on}, volume = {0}, year = {2008}, isbn = {978-0-7695-3110-6}, pages = {11-14}, doi = {http://doi.ieeecomputersociety.org/10.1109/DELTA.2008.121}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

	RefWorks Procite/RefMan/Endnote	x
	TY - CONF JO - Electronic Design, Test and Applications, IEEE International Workshop on TI - The Design and Optimization of a 25 kS/s 10 bit Micropower Current S/H Cell for Weak Current Bio-medical Applications SN - 978-0-7695-3110-6 SP11 EP14 A1 - Ka Leong Tsang, A1 - Jie Yuan, PY - 2008 KW - null VL - 0 JA - Electronic Design, Test and Applications, IEEE International Workshop on ER -

Ka Leong Tsang

Jie Yuan

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/DELTA.2008.121

In this paper, a micropower current sample-and-hold front-end is designed for weak current bio-medical applications in a 0.35-?m 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, SPICEsimulation shows that the sample-and-hold stage can achieve over 60 dB SNDR at the sampling rate of 25kS/s,with the input signal at the Nyquist frequency of 12.4 kHz. The input current range is 100nA. The power consumption of the stage is about 3.6 ?W.

Citation:

Ka Leong Tsang, Jie Yuan, "The Design and Optimization of a 25 kS/s 10 bit Micropower Current S/H Cell for Weak Current Bio-medical Applications," delta, pp.11-14, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008), 2008

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