PMID- 34640865
OWN - NLM
STAT- MEDLINE
DCOM- 20211014
LR  - 20211016
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 21
IP  - 19
DP  - 2021 Sep 30
TI  - Low Complexity System on Chip Design to Acquire Signals from MOS Gas Sensor 
      Applications.
LID - 10.3390/s21196552 [doi]
LID - 6552
AB  - Analog signals from gas sensors are used to recognize all types of VOC (Volatile 
      Organic Compound) substances, such as toxic gases, tobacco or ethanol. The 
      processes to recognize these substances include acquisition, treatment and 
      machine learning for classification, which can all be efficiently implemented on 
      a Field Programmable Gate Array (FPGA) aided by Low-Voltage Differential 
      Signaling (LVDS). This article proposes a low-cost 11-bit effective number of 
      bits (ENOB) sigma-delta Analog to Digital Converter (ADC), with an SNR of 75.97 
      dB and an SFDR of 72.28 dB, whose output is presented on screen in real time, 
      thanks to the use of a Linux System on Chip (SoC) system that enables 
      parallelism, high-level programming and provides a working environment for the 
      scientific treatment of gas sensor signals. The high frequency achieved by the 
      implemented ADC allows for multiplexing the capture of several analog signals 
      with an optimal resolution. Additionally, several ADCs can be implemented in the 
      same FPGA so several analog signals can be digitalized in parallel.
FAU - Talens, Juan B
AU  - Talens JB
AUID- ORCID: 0000-0003-2564-2088
AD  - IGIC Institute, Campus Gandia, Universitat Politecnica de Valencia, 46730 Gandia, 
      Spain.
FAU - Pelegri-Sebastia, Jose
AU  - Pelegri-Sebastia J
AUID- ORCID: 0000-0002-7392-3178
AD  - IGIC Institute, Campus Gandia, Universitat Politecnica de Valencia, 46730 Gandia, 
      Spain.
FAU - Canet, Maria Jose
AU  - Canet MJ
AUID- ORCID: 0000-0002-6765-9219
AD  - Instituto de Telecomunicaciones y Aplicaciones Multimedia, Campus Gandia, 
      Universitat Politecnica de Valencia, 46022 Valencia, Spain.
LA  - eng
GR  - AICO/2016/046/Generalitat Valenciana/
PT  - Journal Article
DEP - 20210930
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
RN  - 0 (Gases)
SB  - IM
MH  - Equipment Design
MH  - *Gases
PMC - PMC8512171
OTO - NOTNLM
OT  - ADC
OT  - Altera
OT  - DE-1-SOC
OT  - FPGA
OT  - LVDS
OT  - MOS gas sensor
OT  - SoC
OT  - sigma delta
COIS- The authors declare no conflict of interest.
EDAT- 2021/10/14 06:00
MHDA- 2021/10/15 06:00
PMCR- 2021/09/30
CRDT- 2021/10/13 01:12
PHST- 2021/07/28 00:00 [received]
PHST- 2021/09/24 00:00 [revised]
PHST- 2021/09/27 00:00 [accepted]
PHST- 2021/10/13 01:12 [entrez]
PHST- 2021/10/14 06:00 [pubmed]
PHST- 2021/10/15 06:00 [medline]
PHST- 2021/09/30 00:00 [pmc-release]
AID - s21196552 [pii]
AID - sensors-21-06552 [pii]
AID - 10.3390/s21196552 [doi]
PST - epublish
SO  - Sensors (Basel). 2021 Sep 30;21(19):6552. doi: 10.3390/s21196552.