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首页> 外文期刊>Analog Integrated Circuits and Signal Processing >Ultra-low power incremental delta-sigma ADC for energy harvesting sensor applications
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Ultra-low power incremental delta-sigma ADC for energy harvesting sensor applications

机译:用于能量收集传感器应用的超低功率增量δ-Sigma ADC

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This paper presents an ultra-low power incremental Delta Sigma ADC with flexible sampling frequency, accuracy, and operational duty-cycle. The flexibility and low leakage power enable efficient scaling of average power together with performance. This allows simultaneous optimization of the sensor system (1) for various multiplexed, both on-chip and off-chip sensor interfaces, and (2) for a wide range of available harvested energy. The architecture allows further flexibility as it can be used in regular continuous Delta Sigma mode as well, without trading off accuracy. The ADC was implemented in a 180 nm CMOS process, on the same ASIC with a temperature sensor, pressure sensor and energy harvesting functionalities. The ADC has a nominal power consumption of 1: 3 mu W, SNDR of 68 dB and BW of 200 Hz, denoting a FOMw = 1: 58 pJ/conv.
机译:本文介绍了超低功率增量Delta Sigma ADC,采样频率,精度和操作占空比。 灵活性和低漏电功率使平均功率的高效缩放以及性能。 这允许同时优化用于各种多路复用的片内和片内传感器接口的传感器系统(1),以及用于各种可用的收获能量的(2)。 该体系结构允许进一步的灵活性,因为它也可以在常规连续的Delta Sigma模式下使用,而无需交易精度。 ADC在180nm CMOS过程中实现,在与温度传感器,压力传感器和能量收集功能相同的ASIC上。 ADC具有1:3 Mu W,SND的标称功耗为68 dB,BW为200 Hz,表示FOMW = 1:58 PJ / CANC。

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