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This paper presents the integrated lock-in amplifier dedicated to low noise applications. The proposed circuit provides efficient processing of small, low-frequency signals in conjunction with effective noise minimization. First, the fundamentals of the Phase Sensitive Detection are briefly recalled. Then, the integrated lock-in amplifier is fully presented and described. Deployed IC architecture...
This paper deals with design of readout system, and then its monolithic implementation, intended for spectroscopy in THz range. At the beginning, the fundamentals of THz spectroscopy based on selective NMOS pixel line, and its possible applications for materials identification are presented. Next, the preceding work on single-channel readout circuit is shortly recalled, with a special emphasis on...
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