A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses
An EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The fuse uses EEPROM memory cells, which allow multiple programming cycles by modifying the stored data on the digital trim codes applie...
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doaj-18f989c7738649c9ac6a85ec762181a72021-03-03T00:00:39ZengMDPI AGSensors1424-82202021-03-01211700170010.3390/s21051700A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable FusesAnca Mihaela Vasile (Dragan)0Alina Negut1Adrian Tache2Gheorghe Brezeanu3ON Semiconductor Romania, 020983 Bucharest, RomaniaON Semiconductor Romania, 020983 Bucharest, RomaniaON Semiconductor Romania, 020983 Bucharest, RomaniaFaculty of Electronics, Politehnica University of Bucharest, Telecommunications and Information Technology, 999032 Bucharest, RomaniaAn EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The fuse uses EEPROM memory cells, which allow multiple programming cycles by modifying the stored data on the digital trim codes applied to the thermal sensor. By reprogramming the fuse, the temperature sensor can be adjusted with an increased trim variation in order to achieve higher accuracy. Experimental results for the trimmed digital sensor showed a +1.5/−1.0 ℃ inaccuracy in the temperature range of −20 to 125 ℃ for 25 trimmed DTS samples at 1.8 V by one-point calibration. Furthermore, an average mean of 0.40 ℃ and a standard deviation of 0.70 ℃ temperature error were obtained in the same temperature range for power supply voltages from 1.7 to 1.9 V. Thus, the digital sensor exhibits similar performances for the entire power supply range of 1.7 to 3.6 V.https://www.mdpi.com/1424-8220/21/5/1700integrated circuitsEEPROM reprogrammable fusesmemory cellstrimming techniques with fusesdigital temperature sensortemperature sensor with digital serial interface |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Anca Mihaela Vasile (Dragan) Alina Negut Adrian Tache Gheorghe Brezeanu |
spellingShingle |
Anca Mihaela Vasile (Dragan) Alina Negut Adrian Tache Gheorghe Brezeanu A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses Sensors integrated circuits EEPROM reprogrammable fuses memory cells trimming techniques with fuses digital temperature sensor temperature sensor with digital serial interface |
author_facet |
Anca Mihaela Vasile (Dragan) Alina Negut Adrian Tache Gheorghe Brezeanu |
author_sort |
Anca Mihaela Vasile (Dragan) |
title |
A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses |
title_short |
A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses |
title_full |
A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses |
title_fullStr |
A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses |
title_full_unstemmed |
A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses |
title_sort |
digital improvement—trimming a digital temperature sensor with eeprom reprogrammable fuses |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2021-03-01 |
description |
An EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The fuse uses EEPROM memory cells, which allow multiple programming cycles by modifying the stored data on the digital trim codes applied to the thermal sensor. By reprogramming the fuse, the temperature sensor can be adjusted with an increased trim variation in order to achieve higher accuracy. Experimental results for the trimmed digital sensor showed a +1.5/−1.0 ℃ inaccuracy in the temperature range of −20 to 125 ℃ for 25 trimmed DTS samples at 1.8 V by one-point calibration. Furthermore, an average mean of 0.40 ℃ and a standard deviation of 0.70 ℃ temperature error were obtained in the same temperature range for power supply voltages from 1.7 to 1.9 V. Thus, the digital sensor exhibits similar performances for the entire power supply range of 1.7 to 3.6 V. |
topic |
integrated circuits EEPROM reprogrammable fuses memory cells trimming techniques with fuses digital temperature sensor temperature sensor with digital serial interface |
url |
https://www.mdpi.com/1424-8220/21/5/1700 |
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