IEEE 2006 Custom Intergrated Circuits Conference (CICC) A 0.6V Highly Linear Switched-R-MOSFET-C Filter

Abstract — The design and performance of a switched-R-MOSFET-C filter is presented in this paper. The filter achieves-77dB THD using a 0.6V supply, and-90dB THD using a 0.8V supply, with a 0.6Vpp differential 2kHz sine input. High linearity at a low supply voltage is achieved by the use of duty-cycle controlled tuning inside a feedback loop. I