Print Email Facebook Twitter A BJT-Based CMOS Temperature Sensor with Duty-Cycle-Modulated Output and ±0.5°C (3σ) Inaccuracy from -40 °c to 125 °c Title A BJT-Based CMOS Temperature Sensor with Duty-Cycle-Modulated Output and ±0.5°C (3σ) Inaccuracy from -40 °c to 125 °c Author Huang, Zhenyan (Zhejiang University) Tang, Z. (TU Delft Electronic Instrumentation; Zhejiang University) Yu, Xiao Peng (Zhejiang University) Shi, Zheng (Zhejiang University) Lin, Ling (Vango Technologies Inc., Hangzhou) Tan, Nick Nianxiong (Zhejiang University) Date 2021 Abstract This brief presents a 0.65% relative inaccuracy CMOS temperature sensor with a duty-cycle-modulated (DCM) output. It uses a BJT-based front-end to generate a proportional to absolute temperature voltage (V_{PTAT}) and a complementary to absolute temperature voltage (V_{CTAT}), which are then modulated to a digital-friendly duty-cycle output. Dynamic element matching with Kelvin connection (KC-DEM) is applied to improve the accuracy of V_{PTAT}. To enhance the robustness of the sensor, a continuous-time dynamic single-threshold hysteresis comparator with high energy efficiency is proposed. Implemented in a standard 0.13-{m} CMOS process, the sensor has an active area of 0.086 mm2 and achieves an inaccuracy of ±0.54 °C (3) from -40 °C to 125 °C. Subject BJTCMOS temperature sensorKC-DEMduty-cyclelow relative inaccuracy To reference this document use: http://resolver.tudelft.nl/uuid:85b26ba3-8350-470b-a738-e41787ce0d17 DOI https://doi.org/10.1109/TCSII.2021.3068283 ISSN 1549-7747 Source IEEE Transactions on Circuits and Systems Part 2: Express Briefs, 68 (8), 2780-2784 Part of collection Institutional Repository Document type journal article Rights © 2021 Zhenyan Huang, Z. Tang, Xiao Peng Yu, Zheng Shi, Ling Lin, Nick Nianxiong Tan Files PDF 09383810.pdf 2.54 MB Close viewer /islandora/object/uuid:85b26ba3-8350-470b-a738-e41787ce0d17/datastream/OBJ/view