A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C

Wei, Linfeng; Li, Wenchang; Liu, Jian; Zhang, Tianyi

doi:10.3390/electronics14112161

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A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C

¹

Laboratory of Solid-State Optoelectronic Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

²

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³

School of Integrated Circuits, University of Chinese Academy of Sciences, Beijing 100083, China

⁴

State Key Laboratory of Semiconductor Physics and Chip Technologies, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

^*

Authors to whom correspondence should be addressed.

Electronics 2025, 14(11), 2161; https://doi.org/10.3390/electronics14112161

Submission received: 14 April 2025 / Revised: 21 May 2025 / Accepted: 24 May 2025 / Published: 26 May 2025

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Abstract

This paper presents a high-precision remote temperature-sensing chip designed for advanced computing systems that require high-precision thermal management. The parasitic resistance, beta compensation, and early voltage compensation are proposed to achieve accuracy compensation of remote temperature sensing, whether using discrete transistors or parasitic transistors. The chip completed the circuit and layout design in a 0.18 μm CMOS process, with a chip area of 0.33 mm² and a supply voltage of 1.8 V. Post-layout simulation results showed that the chip achieves a temperature-sensing accuracy of ±0.25 °C within the temperature range of −55 °C to 125 °C when adopting discrete transistors and parasitic transistors for remote temperature measurement.

Keywords: beta compensation; early voltage compensation; parasitic resistance cancellation; remote temperature-sensing chip; high-precision

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MDPI and ACS Style

Wei, L.; Li, W.; Liu, J.; Zhang, T. A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C. Electronics 2025, 14, 2161. https://doi.org/10.3390/electronics14112161

AMA Style

Wei L, Li W, Liu J, Zhang T. A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C. Electronics. 2025; 14(11):2161. https://doi.org/10.3390/electronics14112161

Chicago/Turabian Style

Wei, Linfeng, Wenchang Li, Jian Liu, and Tianyi Zhang. 2025. "A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C" Electronics 14, no. 11: 2161. https://doi.org/10.3390/electronics14112161

APA Style

Wei, L., Li, W., Liu, J., & Zhang, T. (2025). A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C. Electronics, 14(11), 2161. https://doi.org/10.3390/electronics14112161

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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A Remote Temperature-Sensing Chip Adaptive to Parasitic and Discrete Transistors with an Inaccuracy of ±0.25 °C from −55 °C to 125 °C

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