System and method for reducing flicker noise from CMOS amplifiers

摘要

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).