| Citation: |
Lin Saihua, Yang Huazhong. Design of a Novel All-CMOS Built-In Temperature Sensor[J]. Journal of Semiconductors, 2006, In Press.
Lin S H, Yang H Z. Design of a Novel All-CMOS Built-In Temperature Sensor[J]. Chin. J. Semicond., 2006, 27(3): 551.
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Design of a Novel All-CMOS Built-In Temperature Sensor
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Abstract
By utilizing the linear relationship between the threshold voltage of a MOS transistor and its temperature,an improved built-in digital temperature sensor,which is based on a relaxation oscillator,is provided,and a novel built-in digital temperature sensor,which is based on the Schmitt trigger,is developed for thermal test and the protection of integrated circuits.The simulation results show that the accuracies of the two types of the sensors are both within 1℃Only 19 transistors are needed by the Schmitt trigger based temperature sensor,saving at least 26.9% of the number of transistors as compared with previous work.-
Keywords:
- temperature sensor,
- threshold voltage,
- thermal testability
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