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首页> 外文期刊>IEEE sensors journal >A Nanowatt Smart Temperature Sensor for Dynamic Thermal Management
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A Nanowatt Smart Temperature Sensor for Dynamic Thermal Management

机译：用于动态热管理的纳瓦智能温度传感器

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摘要

The amazing integration densities achieved by current submicron technologies pay the price of increasing static power dissipation with the corresponding rise in heat density. Dynamic Thermal Management (DTM) techniques provide thermal-efficient solutions to balance or equally distribute possible on-chip hot spots. Accurate sensing of on-chip temperature is required by optimally allocating smart temperature sensors in the silicon. In this paper, we introduce an ultra low-power (1.05–65.5 nW at 5 samples/s) tiny (10250 $mu {rm m}^{2}$) CMOS smart temperature sensor based on the thermal dependency of the leakage current. The proposed sensor outperforms all previous works, as far as area and power consumption are concerned (more than 85% reduction in both cases), while still meeting the accuracy constraints imposed by target application domains. Furthermore, a specific interface based on the use of a logarithmic counter has been implemented to digitalize the temperature sensing. These facts, in conjunction with the full compatibility of the sensor with standard CMOS processes, allow the easy integration of many of these tiny sensors in any VLSI layout, making them specially suitable for modern DTM implementations.
机译：当前的亚微米技术实现的惊人的集成密度付出了增加静态功率耗散以及相应地提高热密度的代价。动态热管理（DTM）技术提供了热效率高的解决方案，以平衡或平均分配可能的片上热点。通过在硅片中优化分配智能温度传感器，需要对片上温度进行精确感测。在本文中，我们基于漏电流的热依赖性，介绍了一种超低功耗（5样本/秒，1.05–65.5 nW，微小）（10250 $ mu {rm m} ^ {2} $）CMOS智能温度传感器。就面积和功耗而言（在两种情况下均减少超过85％），所提出的传感器均胜过所有先前的工作，同时仍满足目标应用领域所施加的精度约束。此外，已经实现了基于对数计数器的特定接口，以数字化温度感测。这些事实，加上传感器与标准CMOS工艺的完全兼容性，使许多微型传感器可以很容易地集成到任何VLSI布局中，从而使其特别适合于现代DTM实现。

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