{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T15:50:41Z","timestamp":1780674641579,"version":"3.54.1"},"reference-count":17,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2016,1,25]],"date-time":"2016-01-25T00:00:00Z","timestamp":1453680000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Government of Spain and European Regional Development Fund","award":["TEC2012-38653"],"award-info":[{"award-number":["TEC2012-38653"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>One of the most suitable ways of distributing a resistive sensor array for reading is an array with M rows and N columns. This allows reduced wiring and a certain degree of parallelism in the implementation, although it also introduces crosstalk effects. Several types of circuits can carry out the analogue-digital conversion of this type of sensors. This article focuses on the use of operational amplifiers with capacitive feedback and FPGAs for this task. Specifically, modifications of a previously reported circuit are proposed to reduce the errors due to the non-idealities of the amplifiers and the I\/O drivers of the FPGA. Moreover, calibration algorithms are derived from the analysis of the proposed circuitry to reduce the crosstalk error and improve the accuracy. Finally, the performances of the proposals is evaluated experimentally on an array of resistors and for different ranges.<\/jats:p>","DOI":"10.3390\/s16020149","type":"journal-article","created":{"date-parts":[[2016,1,25]],"date-time":"2016-01-25T10:03:06Z","timestamp":1453716186000},"page":"149","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Improved Circuits with Capacitive Feedback for Readout Resistive Sensor Arrays"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1185-4864","authenticated-orcid":false,"given":"\u00d3scar","family":"Oballe-Peinado","sequence":"first","affiliation":[{"name":"Departamento de Electr\u00f3nica, Universidad de M\u00e1laga, Andaluc\u00eda Tech, Campus de Teatinos, M\u00e1laga 29071, Spain"},{"name":"Instituto de Investigaci\u00f3n Biom\u00e9dica de M\u00e1laga (IBIMA), M\u00e1laga 29010, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando","family":"Vidal-Verd\u00fa","sequence":"additional","affiliation":[{"name":"Departamento de Electr\u00f3nica, Universidad de M\u00e1laga, Andaluc\u00eda Tech, Campus de Teatinos, M\u00e1laga 29071, Spain"},{"name":"Instituto de Investigaci\u00f3n Biom\u00e9dica de M\u00e1laga (IBIMA), M\u00e1laga 29010, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8503-9593","authenticated-orcid":false,"given":"Jos\u00e9","family":"S\u00e1nchez-Dur\u00e1n","sequence":"additional","affiliation":[{"name":"Departamento de Electr\u00f3nica, Universidad de M\u00e1laga, Andaluc\u00eda Tech, Campus de Teatinos, M\u00e1laga 29071, Spain"},{"name":"Instituto de Investigaci\u00f3n Biom\u00e9dica de M\u00e1laga (IBIMA), M\u00e1laga 29010, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7167-2651","authenticated-orcid":false,"given":"Juli\u00e1n","family":"Castellanos-Ramos","sequence":"additional","affiliation":[{"name":"Departamento de Electr\u00f3nica, Universidad de M\u00e1laga, Andaluc\u00eda Tech, Campus de Teatinos, M\u00e1laga 29071, Spain"},{"name":"Instituto de Investigaci\u00f3n Biom\u00e9dica de M\u00e1laga (IBIMA), M\u00e1laga 29010, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9505-9141","authenticated-orcid":false,"given":"Jos\u00e9","family":"Hidalgo-L\u00f3pez","sequence":"additional","affiliation":[{"name":"Departamento de Electr\u00f3nica, Universidad de M\u00e1laga, Andaluc\u00eda Tech, Campus de Teatinos, M\u00e1laga 29071, Spain"},{"name":"Instituto de Investigaci\u00f3n Biom\u00e9dica de M\u00e1laga (IBIMA), M\u00e1laga 29010, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2016,1,25]]},"reference":[{"key":"ref_1","first-page":"1649","article-title":"A small size device using temperature sensor array","volume":"24","author":"Wu","year":"2011","journal-title":"Chin. J. Sens. Actuators"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"945","DOI":"10.1007\/s00170-009-1940-z","article-title":"A 32 \u00d7 32 temperature and tactile sensing array using PI-copper films","volume":"46","author":"Yang","year":"2010","journal-title":"Int. J. Adv. Manuf. Technol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1693","DOI":"10.1021\/nl049114p","article-title":"Electrochemically fabricated polyaniline nanoframework electrode junctions that function as resistive sensors","volume":"4","author":"Wang","year":"2004","journal-title":"Nano Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1073","DOI":"10.1109\/JSEN.2007.895965","article-title":"A new low-cost electronic system to manage resistive sensors for gas detection","volume":"7","author":"Depari","year":"2007","journal-title":"IEEE Sens. J."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"589","DOI":"10.1109\/JSEN.2004.833152","article-title":"A tactile sensor sheet using pressure conductive rubber with electrical-wires stitched method","volume":"4","author":"Shimojo","year":"2004","journal-title":"IEEE Sens. J."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"765","DOI":"10.1007\/s00542-009-0958-3","article-title":"Tactile sensors based on conductive polymers","volume":"16","author":"Macicior","year":"2010","journal-title":"Microsyst. Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"425","DOI":"10.1109\/84.896763","article-title":"A traction stress sensor array for use in high-resolution robotic tactile imaging","volume":"9","author":"Kane","year":"2000","journal-title":"J. Microelectromechan. Syst."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Dahiya, R.S., Metta, G., Valle, M., Adami, A., and Lorenzelli, L. (2009). Piezoelectric oxide semiconductor field effect transistor touch sensing devices. Appl. Phys. Lett., 95.","DOI":"10.1063\/1.3184579"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"G\u00f6ger, D., and Worn, H. (2007, January 28\u201331). A highly versatile and robust tactile sensing system. Proceedings of the 2007 IEEE Sensors, Atlanta, GA, USA.","DOI":"10.1109\/ICSENS.2007.4388587"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1020","DOI":"10.1109\/JSEN.2014.2359967","article-title":"Design and Crosstalk Error Analysis of the Circuit for the 2-D Networked Resistive Sensor Array","volume":"15","author":"Wu","year":"2015","journal-title":"IEEE Sens. J."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"5489","DOI":"10.3390\/s110505489","article-title":"A Large Area Tactile Sensor Patch Based on Commercial Force Sensors","volume":"11","author":"Barquero","year":"2011","journal-title":"Sensors"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1554","DOI":"10.1109\/TCSI.2008.2008290","article-title":"Integrated Circuitry to Detect Slippage Inspired by Human Skin and Artificial Retinas","volume":"56","author":"Linan","year":"2009","journal-title":"IEEE Trans. Circuits Syst. Regul. Pap."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"3249","DOI":"10.3390\/s110303249","article-title":"Three Realizations and Comparison of Hardware for Piezoresistive Tactile","volume":"11","year":"2011","journal-title":"Sensors"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/S0924-4247(98)00204-0","article-title":"Measurement errors in the scanning of piezoresistive sensors arrays","volume":"72","year":"1999","journal-title":"Sens. Actuators Phys."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1016\/j.sna.2005.01.010","article-title":"Accuracy and resolution of direct resistive sensor-to-microcontroller interfaces","volume":"121","author":"Reverter","year":"2005","journal-title":"Sens. Actuators Phys."},{"key":"ref_16","unstructured":"Xilinx, Inc. Spartan-3AN FPGA Family Data Sheet. Available online: http:\/\/www.xilinx.com\/support\/documentation\/data_sheets\/ds557.pdf."},{"key":"ref_17","unstructured":"Texas Instruments, Inc. 600 uA\/Ch 2.8 MHz Rail-to-Rail I\/O High-Drive Op Amps with Shutdown. Available online: http:\/\/www.ti.com\/lit\/ds\/symlink\/tlv2475.pdf."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/16\/2\/149\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T19:18:14Z","timestamp":1760210294000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/16\/2\/149"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,1,25]]},"references-count":17,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2016,2]]}},"alternative-id":["s16020149"],"URL":"https:\/\/doi.org\/10.3390\/s16020149","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,1,25]]}}}