Practical Optimization of Noise and Distortion in Sallen and Key Filter Sections
Peter J. Billam · IEEE Journal of Solid-State Circuits · 1979
This communication presents simple anatytic formulas for the noise and distortion aggravation performance of Sallen and Key filter sections, under the approximation that the resistor noise contribution is small compared with the amplifier noise. This performance is optimized analytically and subject to component constraints.