<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432022000300106</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2022.23.3.022</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Circuito de acondicionamiento con amplio rango dinámico para sensores resistivos basado en PSoC]]></article-title>
<article-title xml:lang="en"><![CDATA[Wide dynamic range conditioning circuit for resistive sensor based on Programmable System-on-Chip (PSoC)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Ramírez]]></surname>
<given-names><![CDATA[Emmanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Simon]]></surname>
<given-names><![CDATA[Luis Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-García]]></surname>
<given-names><![CDATA[Francisco Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-García]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico de La Laguna ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico Superior de Huauchinango ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico de La Laguna ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af4">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico de La Laguna ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432022000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432022000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432022000300106&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Este trabajo presenta la implementación de una interface de acondicionamiento para sensores resistivos, basado en la técnica ratiométrica. Las aplicaciones de los sensores resistivos han tenido un aumento en la industria para la medición de diferentes variables físicas o químicas. Estos sensores deben convertirse en una señal digital compatible con una computadora, sistema de adquisición de datos, microcontrolador o microprocesador, utilizando una interface. La interface propuesta consiste de un convertidor de resistencia a periodo. La implementación del circuito se realizó en una tarjeta PSoC (Sistema Programable en un Chip) modelo 5LP utilizando bloques analógicos programables. Se obtuvo un rango dinámico de 136dB, con una entrada de 5&#937; a 36M&#937;. Además, se probó el desempeño del circuito con tres sensores comerciales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This paper presents the implementation of an interface for resistive sensors, based on the ratiometric technique. Resistive sensors applications have been increasing in the industry for the measurement of different physical and chemical variables. These sensors must be converted into a digital signal to be compatible with a computer, DAQ system, microcontroller or microprocessor using an interface. The proposed interface consists of a resistance to period converter. The Proposed circuit was implemented in a PSoC PL5 board using programmable analog blocks. A dynamic range of 136dB was obtained, with an input of 5&#937; to 36M&#937;. In addition, performance of the circuit was tested with three commercial sensors.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Circuitos de lectura de señal]]></kwd>
<kwd lng="es"><![CDATA[PSoC]]></kwd>
<kwd lng="es"><![CDATA[Sensores resistivos]]></kwd>
<kwd lng="es"><![CDATA[convertidor de periodo a digital]]></kwd>
<kwd lng="en"><![CDATA[ReadOut Circuit]]></kwd>
<kwd lng="en"><![CDATA[PSoC]]></kwd>
<kwd lng="en"><![CDATA[Resistive Sensors]]></kwd>
<kwd lng="en"><![CDATA[Period-to-Digital Converter]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[CMOS interface circuits for metal-oxide gas sensors]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Tonantzintla, Puebla ]]></publisher-loc>
<publisher-name><![CDATA[National Institute for Astrophysics, Optics and Electronics]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Understanding ratiometric conversions]]></source>
<year>2004</year>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castellanos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Trujillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Navas]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Barbero]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oballe]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Vidal]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adding proximity sensing capability to tactile array based on off-the-shelf fsr and psoc]]></article-title>
<source><![CDATA[IEEE Transactions on Instrumentation and Measurement]]></source>
<year>2020</year>
<volume>69</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>4238-50</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chiang]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[A CMOS fish resistance to period converter with calibration circuits for fish spoilage detecting applications]]></source>
<year>2017</year>
<conf-name><![CDATA[ IEEE International Conference on Mechatronics and Automation]]></conf-name>
<conf-loc> </conf-loc>
<page-range>51-5</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Choi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Blaauw]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Sylvester]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Wide input range 1.7&#956;W 1.2kS/s resistive sensor interface circuit with 1 cycle/sample logarithmic sub-ranging]]></source>
<year>2015</year>
<conf-name><![CDATA[ Symposium on VLSI Circuits]]></conf-name>
<conf-loc>Kyoto, Japan </conf-loc>
<page-range>C330-1</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<collab>Cypress Semiconductor Corporation</collab>
<source><![CDATA[Microcontrollers (MCUs) Products]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fatecha]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Guevara]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reconfigurable architecture for smart sensor node based on IEEE 1451 standard]]></article-title>
<source><![CDATA[SENSORS IEEE]]></source>
<year>2013</year>
<page-range>1-4</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Maeda]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-García]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A highly robust interface circuit for resistive sensors]]></article-title>
<source><![CDATA[MDPI Electronics]]></source>
<year>2019</year>
<volume>8</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>263</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<collab>SpectraSymbol</collab>
<article-title xml:lang=""><![CDATA[Hoja de datos, sensor de posición]]></article-title>
<source><![CDATA[SoftPot]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<collab>SpectraSymbol</collab>
<article-title xml:lang=""><![CDATA[Hoja de datos, sensor de flexión]]></article-title>
<source><![CDATA[FlexSensor]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Hoja de datos, galga extensiométrica]]></article-title>
<source><![CDATA[Alpha]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jayaraman]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[High precision 16-bit readout gas sensor interface in 0.13&#956;m cmos]]></source>
<year>2007</year>
<conf-name><![CDATA[ IEEE International Symposium on Circuits and Systems]]></conf-name>
<conf-loc> </conf-loc>
<page-range>3071-4</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kirianaki]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Yurish]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shpak]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Deynega]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Data acquisition and signal processing for smart sensors]]></source>
<year>2002</year>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kokolanski]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Gavrovski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Dimcev]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Makraduli]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simple interface for resistive sensors based on pulse width modulation]]></article-title>
<source><![CDATA[IEEE Transactions on instrumentation and measurement]]></source>
<year>2013</year>
<volume>62</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>2983-92</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Massot]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gehin]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Nocua]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dittmar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[McAdams]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[A wearable, low-power, health-monitoring instrumentation based on a programmable system-on-chipTM]]></source>
<year>2009</year>
<conf-name><![CDATA[ Annual International Conference of the IEEE Engineering in Medicine and Biology Society]]></conf-name>
<conf-loc> </conf-loc>
<page-range>4852-5</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohan]]></surname>
<given-names><![CDATA[N. M.]]></given-names>
</name>
<name>
<surname><![CDATA[George]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Jagadeesh]]></surname>
<given-names><![CDATA[V. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of a sigma-delta resistance-to- digital converter for differential resistive sensors]]></article-title>
<source><![CDATA[IEEE Transactions on Instrumentation and Measurement]]></source>
<year>2009</year>
<volume>58</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1617-22</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohan]]></surname>
<given-names><![CDATA[N. M.]]></given-names>
</name>
<name>
<surname><![CDATA[George]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Jagadeesh]]></surname>
<given-names><![CDATA[V. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A novel dual-slope resistance-to-digital converter]]></article-title>
<source><![CDATA[IEEE Transactions on instrumentation and measurement]]></source>
<year>2010</year>
<volume>59</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nakagawa]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Horikoshi]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ishikuro]]></surname>
<given-names><![CDATA[H. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[High-resolution time-based resistance-to-digital converter with tdc and counter]]></source>
<year>2018</year>
<conf-name><![CDATA[ 61International Midwest Symposium on Circuits and Systems (MWSCAS)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>242-5</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reverter]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The art of directly interfacing sensors to microcontrollers]]></article-title>
<source><![CDATA[MDPI Journal of Low Power Electronics and Applications]]></source>
<year>2012</year>
<volume>2</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>265-81</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sergey]]></surname>
<given-names><![CDATA[Y. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low Power, Low Voltage, Resistance-to-Digital Converter for Sensing Applications]]></article-title>
<source><![CDATA[Sensors &amp; Transducers]]></source>
<year>2016</year>
<volume>204</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
