A 6-bit, two-step, successive approximation logarithmic ADC for biomedical applications

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Title: A 6-bit, two-step, successive approximation logarithmic ADC for biomedical applications
Author(s): Sundarasaradula, Y
Constandinou, TG
Thanachayanont, A
Item Type: Conference Paper
Abstract: This paper presents the design and realization of a novel low-power 6-bit successive approximation logarithmic ADC for biomedical applications. A two-step successive approximation method is proposed to obtain a piecewise-linear approximation of the desired logarithmic transfer function. The proposed ADC has been designed and simulated using process parameters from a standard 0.35 μm 2P4M CMOS technology with a single 1.8 V power supply voltage. Simulation results show that, at a sampling rate of 25 kS/s, the proposed ADC consumes 4.36 μW to 14.6 μW (proportional to input amplitudes). The proposed ADC achieves 18.6 pJ/conversion-step, maximum INL of 0.45 LSB, an ENOB of 4.97-bits, and SNDR of 31.7 dB with 1 V full-scale input range.
Publication Date: 6-Feb-2017
Date of Acceptance: 30-Sep-2016
URI: http://hdl.handle.net/10044/1/44156
DOI: https://dx.doi.org/1109/ICECS.2016.7841123
Publisher: IEEE
Start Page: 25
End Page: 28
Journal / Book Title: Electronics, Circuits and Systems (ICECS), 2016 IEEE International Conference on
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/K015060/1
Conference Name: IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Copyright Statement: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publication Status: Published
Start Date: 2016-12-11
Finish Date: 2016-12-14
Conference Place: Monte Carlo, Monaco
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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