Abstract
This letter describes a compact resistor-based temperature sensor intended for the thermal monitoring of microprocessors and DRAMs. It consists of an RC poly phase filter (PPF) that is read out by a frequency-locked loop (FLL) based on a dual zero-crossing (ZC) detection scheme. The sensor,fabricated in 65-nm CMOS,occupies 5800 μm2 and achieves moderate accuracy [±1.2 °C (3σ)] over a wide temperature range (-50 °C to 105 °C) after a one-point trim. This is 2× better than the previous compact resistor-based sensors. Operating from 0.85 to 1.3-V supplies,it consumes 32.5-μA and achieves 2.8-mK resolution in a 1-ms conversion time,which corresponds to a resolution FoM of 0.26 pJ•K2.
Original language | English |
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Title of host publication | ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference |
Publisher | IEEE |
Pages | 67-70 |
Number of pages | 4 |
ISBN (Electronic) | 9781728115504 |
DOIs | |
Publication status | Published - 2019 |
Event | 45th IEEE European Solid State Circuits Conference, ESSCIRC 2019 - Cracow, Poland Duration: 23 Sept 2019 → 26 Sept 2019 |
Publication series
Name | ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference |
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Conference
Conference | 45th IEEE European Solid State Circuits Conference, ESSCIRC 2019 |
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Country/Territory | Poland |
City | Cracow |
Period | 23/09/19 → 26/09/19 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- CMOS temperature sensor
- dual zero-crossing (ZC) detection
- frequency-locked loop (FLL)
- one-point trim
- RC poly phase filter (PPF)
- resistor-based temperature sensor.