Construction of a Low-Noise Amplifier Chain With Programmable Gain and Offset
University essay from Linköpings universitet/Elektroniksystem; Linköpings universitet/Tekniska högskolan
Abstract: A low-noise, variable gain amplier chain was constructed for interfa-cing a sensor to an ADC. During the course of the work two dierent methods -switched-capacitor circuits and chopping circuits - for dealing with 1/f noise wereinvestigated during the course of the work. The resulting circuit did not quitemeet the performance required by the specication, some possible improvementsare suggested.
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