Design and Calibration Method for Precise Temperature Sensor

Authors

  • Kamil Stępniewski Warsaw University of Technology
  • Bartosz Dec Warsaw University of Technology
  • Arkadiusz Łuczyk Warsaw University of Technology
  • Jakub Jasiński Warsaw University of Technology
  • Krzysztof Siwiec Warsaw University of Technology

Abstract

This paper presents the design of the temperature sensor and analysis of different calibration methods. The main aspect of the analysis was optimization of the number and location of the measurement points needed to perform the calibration for a given accuracy. For this purpose, temperature sensors using proportional to the absolute temperature (PTAT) current and current controlled oscillator (CCO) have been designed in 180 nm technology. To reduce the sensitivity of the sensor to the supply voltage, the low dropout regulator (LDO) has been used. The bandgap circuit generates the stable reference voltage for the LDO and PTAT current for the CCO

Additional Files

Published

2025-10-13

Issue

Section

Microelectronics, nanoelectronics