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A 6800-μm2 Resistor-Based Temperature Sensor in 180-nm CMOS

Conference Paper (2018)
Author(s)

Jan Angevare (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Kofi A.A. Makinwa (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Department
Microelectronics
DOI related publication
https://doi.org/10.1109/ASSCC.2018.8579332 Final published version
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Publication Year
2018
Language
English
Department
Microelectronics
Article number
8579332
Pages (from-to)
43-46
ISBN (electronic)
978-1-5386-6412-4
Event
2018 IEEE Asian Solid-State Circuits Conference, A-SSCC 2018 (2018-11-05 - 2018-11-07), Tainan, Taiwan
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Abstract

A resistor-based temperature sensor has been realized in 180 nm CMOS for SoC thermal management applications. Occupying only 6800 μm2, it is the smallest resistor-based temperature sensor ever reported. This is achieved by employing a compact highly-digital VCO-based ADC. After a 2-point trim, the sensor achieves an inaccuracy of ±0.35 °C (3σ) in a temperature range from-35 °C to 125 °C. By achieving a resolution of 0.12 °C (rms) at 2.8kSa/s, it can track the fast thermal-transients in SoCs.

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