已经报道了几个用双极型技术制造的灵敏温度传感器.我们这里的目的是用标准的阱CMOS技术制造一个灵敏的传感器,这个传感器不但要和双极型技术制成的传感器有同样的精度和稳定性,而且还要增加CMOS技术固有的数学处理能力.采用的电路包括四个主要部分:(1)、一个与温度有关的电流源;(2)、一个参考电流源;(3)、一个电流一频率转换器;(4)、一个数字信号处理器.第(1)部分用两个横向晶体管产生的PTAT电压~2;它的工艺与任何标准CMOS工艺兼容.这一部分作为温度一电流转换器.第(2)部分为芯片上的A/D转换器产生一个电流参考源.它组合了两部分电流;其一是 Several sensitive temperature sensors fabricated using bipolar technology have been reported and our goal here is to use standard well CMOS technology to create a sensitive sensor that is not only as accurate as the sensor made with bipolar technology And stability, but also to increase the mathematical processing inherent in CMOS technology. The circuit consists of four main parts: (1) a temperature-dependent current source (2) a reference current source (3) A current-to-frequency converter; (4) a digital signal processor. Part (1) uses two lateral transistors to generate a PTAT voltage of ~ 2 and its process is compatible with any standard CMOS process. This part operates as a temperature-current Converter. Part (2) generates a current reference source for the on-chip A / D converter. It combines two parts of current; one is