⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种亚皮安级ΔΣ电流放大器，用于单分子纳米传感器的电流读出。通过ΔΣ调制技术实现了对pA级微弱电流的高精度检测，解决了纳米传感器输出信号极小的挑战。
University of Milano-Bicocca, Milano, Italy 2 Current readout has been a known technique since the inception of electronic sensors and is widely used, for example, in radiation detectors, impedance spectroscopy, and mechanical sensors. Recently, new challenges have emerged for current sensing in the upcoming era of nanosensors. Nanowires, carbon nanotubes and nanopores are emerging devices that have been proven to be effective in sensing ultra-low concentrations of target molecules [1]. For those devices, current sensing becomes challenging since outputs consist of signals in the pA range or less, in the kHz band. To measure these values, very low-noise front-end amplifiers are needed such as the one in [2]. It achieves a noise floor
Marco Bennati1, Federico Thei1, Michele Rossi2, Marco Crescentini1,
Gennaro D’Avino3, Andrea Baschirotto3,4, Marco Tartagni1 1 University of Bologna, Cesena, Italy Silicon Biosystems, Bologna, Italy 3 University of Salento, Lecce, Italy 4