Gated CDS Integrator

[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.

[发布日期] 2018-12-18

[学科分类] 电子与电气工程

[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