Gated CDS Integrator

Quilligan, Gerard T [Inventor]Aslam, Shahid [Inventor]

关键词: AMPLIFICATION;    ANALOG TO DIGITAL CONVERTERS;    DEMODULATORS;    FREQUENCY CONVERTERS;    INTEGRATORS;    MODULATORS;    THERMAL NOISE;    PATENTS;    CIRCUITS;    DIGITAL TECHNIQUES;    HIGH GAIN;    LOW NOISE;    NEGATIVE FEEDBACK;   

RP-ID  :  US-Patent-10,158,335, US-Patent-Appl-SN-15/277,223

学科分类：电子与电气工程

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来源: NASA Technical Reports Server

【 摘 要 】

A Gated CDS Integrator (GCI) may amplify low-level signals without introducing excessive offset and noise. The GCI may also amplify the low level signals with accurate and variable gain. The GCI may include a modulator preceding an amplifier such that offset or noise present in a signal path between the modulator and a demodulator input is translated to a higher out of band frequency, and thereafter reduced by a double sampled discrete time integrator which also reduces thermal noise. The thermal noise may also be reduced by averaging the output of the discrete time integrator.