溫度感測器與解碼顯示系統晶片之整合設計

對於一個溫度感測器與顯示解碼系統整合是由溫度感測電晶體感測器、溫度感測器讀出電路、BCD 解碼器以及七節燈解碼電路所組成。溫度感測器與顯示解碼系統整合做為一顆完整的晶片在做量測時，可以提供給使用者一顆晶片完整所有相關的事情，此研究提 COMS 技術下，一個具有完整的溫度感測器與顯示解碼系統整合。本論文溫度感測器與顯示解碼系統整合包含了三大重點，一個是絕對溫度比例產生電路，一個是 BCD 解碼器以及七節燈解碼電路，實現並完成於 UMC 018um Mixed-Signal 1P6M 製程。晶片面積為 1000um*1000um 平均功率消耗為低功率，溫度感測範圍為每 5mV/℃取得輸出電壓，在在佈局前和佈局後的模擬顯示 0℃到 70℃的線性曲線。本論文溫度感測器讀出電路是由帶隙能差參考電路所組成，利用在 0℃時效正 0.25 伏特，再藉由差動放大器和緩衝器提升輸出 25msv/℃

關鍵字

溫度感測器； BCD解碼電路；讀出電路；七節燈解碼電路

並列摘要

The integration of a Temperature sensor and a Display decoding system is composed of a temperature sensing transistor sensor, a temperature sensor readout circuit, a BCD decoder, and an Seven-segment lamp decoding circuit. The temperature sensor is integrated with the display decoding system as a complete chip. When measuring, it can provide the user with a chip with all the related things. This study mentions COMS technology, a Integrated with the display decoding system. The temperature sensor is integrated with the display decoding system as a complete chip. When measuring, it can provide users with a chip to complete all the related things. This study provides a complete temperature sensor under COMS technology. Integration with display decoding system. The integration of the temperature sensor and the display decoding system includes three major points, one is the absolute temperature ratio generation circuit, the other is the BCD decoder and the Seven-segment lamp decoding circuit, which are implemented and completed in the UMC .18um MixedSignal 1P6M process. Chip area is 1000um X 1000um The average power consumption is low power, and the temperature sensing range is to obtain the output voltage every 5mV/℃The simulation before and after the layout shows a linear curve from 0℃ to 70℃ The temperature sensor readout circuit is composed of a band gap reference circuit, which utilizes a positive 0.25V aging at 0°C, and then boosts the output by 25mv/℃with a differential amplifier and a buffer