alexa Single-Chip Implementation of Level-Crossing ADC for ECG Sampling | OMICS International
ISSN: 2332-0796

Journal of Electrical & Electronic Systems
Open Access

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Research Article

Single-Chip Implementation of Level-Crossing ADC for ECG Sampling

Bengtsson L*

Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden

*Corresponding Author:
Bengtsson L
Department of Physics
University of Gothenburg
SE-41296 Gothenburg, Sweden
Tel: +46317869128
E-mail: [email protected]

Received Date: March 03, 2016; Accepted Date: March 24, 2017; Published Date: March 29, 2017

Citation: Bengtsson L (2017) Single-Chip Implementation of Level-Crossing ADC for ECG Sampling. J Electr Electron Syst 6: 219. doi:10.4172/2332-0796.1000219

Copyright: © 2017 Bengtsson L. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

This work demonstrates for the first time the implementation of a level-crossing analog-to-digital converter (LC-ADC) in a single, commercially available IC (that costs less than $2). The implementation utilizes adaptive threshold levels in order to prevent overload distortions for fast-changing signals. The entire design is based on a 20-pin PIC16F1769 microcontroller from Microchip and no external components are required. In fact, the only external circuitry required is a single jumper wire. This is due to the fact that the new generation of microcontrollers have integrated core-independent hardware, analog as well as digital. This design takes full advantage of the core-independent logic and analog blocks in a PIC16F17xx circuit to implement the LC-ADC technique that so far has required multiple-circuit designs or ASIC implementation. The design is demonstrated on a standard electrocardiogram (ECG) signal.

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