RT Journal Article
T1 Two proposals to simplify resistive sensor readout based on Resistance-to-Time-to-Digital conversion
A1 Hidalgo-López, José Antonio
A1 Castellanos-Ramos, Julián
K1 Sensores
K1 Resistores
AB Direct Interface Circuits (DICs) are simple circuits used in readouts for all types of sensors. For resistive sensors, all DICs perform a resistance-to-time-to-digital conversion using just the sensor, some calibration resistors, one or two capacitors, and a Digital Processor. These circuits require a variable number of charging and discharging cycles of a capacitor to estimate the sensor resistance, Rx, increasing both acquisition time and power consumption. This paper presents two resistive DICs capable of estimating Rx by means of a single charging-discharging process, simplifying the readout process. Furthermore, this is achieved without increasing hardware requirements. Only two time measurements are used to obtain Rx. Despite the simplicity of the new circuits, the experimental results show that relative errors of estimating Rx can be below 0.8 %, and this in a wide range of resistances of over 40 dB. Moreover, acquisition time and energy consumption can be reduced by up to 75 %.
PB Elsevier
YR 2023
FD 2023
LK https://hdl.handle.net/10630/26356
UL https://hdl.handle.net/10630/26356
LA eng
NO José A. Hidalgo-López, Julián Castellanos-Ramos, Two proposals to simplify resistive sensor readout based on Resistance-to-Time-to-Digital conversion, Measurement, Volume 213, 2023, 112728, ISSN 0263-2241, https://doi.org/10.1016/j.measurement.2023.112728.
NO Funding for open access charge: Universidad de Málaga / CBUA.This work was supported by the Spanish Government under contractPID2021-125091OB-I00
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 22 ene 2026