A 210nW BJT-based Temperature Sensor with an Inaccuracy of ±0.15°C (3σ) from −15°C to 85°C
A 210nW BJT-based Temperature Sensor with an Inaccuracy of ±0.15°C (3σ) from −15°C to 85°C
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基于 210nW BJT 的温度传感器,在 −15°C 至 85°C 范围内精度为 ±0.15°C (3σ)
DOI:
10.1109/vlsitechnologyandcir46769.2022.9830266
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
K. Makinwa
中科院分区:
文献类型:
--
作者:
T. Someya;Vincent Van Hoek;J. Angevare;S. Pan;K. Makinwa
This paper presents a 210nW BJT-based temperature sensor that achieves an inaccuracy of ±0.15°C (3σ) from −15°C to 85°C. A dual-mode front-end (FE), which combines a bias circuit and a BJT core, halves the power needed to generate well-defined CTAT (VBE) and PTAT (ΔVBE) voltages. The use of a tracking ΔΣ ADC reduces FE signal swing and further reduces system power consumption. In a 180-nm BCD process, the prototype achieves a 15mK resolution in 50ms conversion time, translating into a state-of-the-art FoM of 2.3pJK2.