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標題:A High-Resolution All-Digital Temperature Sensor with Process Variation Compensation
學年104
學期1
出版(發表)日期2016/01/12
作品名稱A High-Resolution All-Digital Temperature Sensor with Process Variation Compensation
作品名稱(其他語言)
著者Yu-Lung Lo; Wei-Tsuen Chen; Yu-Ting Chiu; Wei-Bin Yang,
單位
出版者
著錄名稱、卷期、頁數Sensors and Materials, Vol. 28, No. 5, pp. 395–402
摘要In this paper, we propose a high-resolution all-digital complementary metal–oxide
semiconductor (CMOS) temperature sensor with a ring oscillator for temperature sensing and power
supply immunity, a time amplifier for process variation compensation, and serial digital output for
low area consumption. Because of the linearity of its high output cycle–temperature, the sensor
has excellent measurement accuracy; the architecture of the sensor effectively decreased power
supply sensitivity, and the parallel-to-serial converter considerably reduced area consumption. In
addition, the high resolution is determined by the time amplifier with external digital codes. The
determination of resolution using the time amplifier and the process variation compensation were
accomplished simultaneously. The temperature sensor was fabricated using 0.18-μm standard
CMOS technology, and the core circuit occupies an area of 0.001 mm2. The experimental results
indicated that the energy per conversion rate was only 10 nJ at a supply voltage of 1.8 V; the
conversion rate was 15–30 k samples/s, and the error in temperature sensing ranged from −1.58 to
+1.6 °C with a resolution higher than 0.1 °C after one-point calibration in the −40 to +130 °C range.
With these advantages, the temperature sensor is suitable for application in large integrated circuit (IC)
systems and three-dimensional ICs.
關鍵字CMOS temperature sensor; thermal sensor; ring oscillator; all digital; process variation compensation
語言英文(美國)
ISSN
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別日本
公開徵稿
出版型式,電子版
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