CMOS工艺下的温度检测电路的设计

Design of CMOS Temperature Detection Circuit

介绍一种在CMOS工艺条件下,温度检测电路的实现方案,对温度检测的原理进行了深入分析,通过具体的电路设计验证了实现方案的可行性。电路在HHNECCZ6H工艺上流片。测试结果表明电路性能稳定可靠,提出的方案切实可行。电路可在-50°C到100°C范围内测温,精度可达正负3°C。

Scheme of temperature detection using standard CMOS technology is presented in this paper. Detailed analysis of the principle of temperature detection is presented too. To evaluate the feasibility of the presented methodology, a real temperature detection circuit is designed and tapped out using HHNEC CZ6H process. Test results of the circuit indicate the scheme is feasible. The circuit can work properly from -50~°C to 100~°C with a resolution of ±3~°C .