System and method for reducing flicker noise from CMOS amplifiers

A technique is provided for acquiring data with reduced correlated low frequency noise interference via a data acquisition circuit (10). The data acquisition circuit (10) includes a plurality of data channels (12) comprising a plurality of amplifiers (14) and a biasing circuit (16) for providing bia...

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Hauptverfasser: CRONCE, RICHARD GORDON, RAO, NARESH KESAVAN, GUO, JIANJUN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A technique is provided for acquiring data with reduced correlated low frequency noise interference via a data acquisition circuit (10). The data acquisition circuit (10) includes a plurality of data channels (12) comprising a plurality of amplifiers (14) and a biasing circuit (16) for providing bias voltages to the plurality of amplifiers (14). The biasing circuit (16) is configured to generate the bias voltages and establish a relationship between the bias voltages so as to reduce correlated low frequency noise in the plurality of amplifiers (14).