A BJT-Based CMOS Temperature Sensor With Duty-Cycle-Modulated Output and ±0.5°C (3σ) Inaccuracy From −40 °C to 125 °C
نویسندگان
چکیده
This brief presents a 0.65% relative inaccuracy CMOS temperature sensor with duty-cycle-modulated (DCM) output. It uses BJT-based front-end to generate proportional absolute voltage ( V PTAT ) and complementary xmlns:xlink="http://www.w3.org/1999/xlink">CTAT ), which are then modulated digital-friendly duty-cycle Dynamic element matching Kelvin connection (KC-DEM) is applied improve the accuracy of . To enhance robustness sensor, continuous-time dynamic single-threshold hysteresis comparator high energy efficiency proposed. Implemented in standard 0.13- μm process, has an active area 0.086 mm 2 achieves ±0.54 °C 3σ) from -40 125 °C.
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ژورنال
عنوان ژورنال: IEEE Transactions on Circuits and Systems Ii-express Briefs
سال: 2021
ISSN: ['1549-7747', '1558-3791']
DOI: https://doi.org/10.1109/tcsii.2021.3068283