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首页> 外文会议>2016 International Conference on Microelectronics, Computing and Communications >CMOS temperature sensor with built-in ADC
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CMOS temperature sensor with built-in ADC

机译：内置ADC的CMOS温度传感器

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摘要

An area efficient temperature sensor using Ring Oscillator (RO) is proposed. It is basically implemented with two ROs, one being temperature-sensitive and the other temperature-insensitive. Temperature measurement is done in two steps. Initially, temperature-to-time conversion is performed when temperature-sensitive RO is enabled and then time-to-digital conversion is performed when temperature-insensitive RO is enabled. This two step process optimizes the area because only one counter is sufficient. The feedback provision enables only one RO at once, providing low dynamic power dissipation. A True Single-Phase Clock (TSPC) based high speed counter is employed to meet the requirement. It is designed using UMC 0.18 μm CMOS technology with the supply votage of 1.8 V and the simulation results are presented. The proposed sensor is capable of measuring the temperatures from -55° C to 125° C with the resolution of 5.68 LSB/°C. It dissipates 650 μW with the conversion rate of 300K Samples/S and occupying 10.05 μm2.
机译：提出了一种使用环形振荡器（RO）的高效区域温度传感器。它基本上由两个RO来实现，一个对温度敏感，另一个对温度不敏感。温度测量分两个步骤进行。最初，当启用温度敏感型RO时执行温度到时间的转换，然后在启用温度敏感型RO时执行时间到数字的转换。由于只有一个计数器就足够了，所以此两步过程优化了面积。反馈规定一次只能启用一个RO，从而降低了动态功耗。基于真单相时钟（TSPC）的高速计数器可满足要求。它采用UMC 0.18μmCMOS技术进行设计，电源电压为1.8 V，并给出了仿真结果。建议的传感器能​​够以-5.68 LSB /°C的分辨率测量-55°C至125°C的温度。它耗散650μW，转换率为300K样本/ S，占地10.05μm2。

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