A Method for Reducing the Variation in 'On' Resistance of a MOS Sampling Switch
01 January 2000
Variation in the "on" resistance of a MOS sampling switch can introduce distortion into the front end of a switched-capacitor filter or analog-to-digital converter. We review three methods commonly used to linearize the resistance of a MOS switch and propose a new technique that addresses their limitations. A practical method for implementation is also suggested.