2026-04-29T04:09:48Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/171242024-01-16T12:15:58Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16927

00925njm 22002777a 4500 dc Oballe-Peinado, Óscar author Vidal-Verdú, Fernando author Sánchez-Durán, José A author Castellanos-Ramos, Julián author Hidalgo-López, José A author 2016-01-25 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. http://hdl.handle.net/10668/9786 http://hdl.handle.net/20.500.12105/17124 26821024 10.3390/s16020149 1424-8220 Sensors (Basel, Switzerland) FPGAs direct sensor-to-digital device interface parallel analogue data acquisition resistive sensor arrays Improved Circuits with Capacitive Feedback for Readout Resistive Sensor Arrays.