A 0.0018 mm2 frequency-to-digital-converter-based CMOS smart temperature sensor

Hokyu Lee, Kisoo Kim, Sangdon Jung, Janghoon Song, Jong Kook Kim, Chulwoo Kim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A frequency-to-digital converter based small size smart temperature sensor for portable applications is proposed. To reduce its size and power consumption, the proposed temperature sensor adopted frequency-to-digital converter without relying on a band-gap reference or a voltage/current analog-to-digital converter. The device was fabricated using a 90 nm CMOS process, occupying an area of 0.0018 mm2 with a resolution of 3°C.

Original languageEnglish
Pages (from-to)153-157
Number of pages5
JournalAnalog Integrated Circuits and Signal Processing
Issue number2
Publication statusPublished - 2010 Aug


  • CMOS smart sensor
  • Frequency-to-digital converter
  • Ring oscillator
  • Temperature compensation
  • Temperature sensor

ASJC Scopus subject areas

  • Signal Processing
  • Hardware and Architecture
  • Surfaces, Coatings and Films


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