Design Methodology for MFB Filters in ADC Interface Applications

Texas Instruments

Published Date: 02/23/2005

Description

While the Multiple FeedBack (MFB) filter topology is well-known its application to very high dynamic range analog-to-digital converter (ADC) interfaces requires a careful consideration of component value selection. This application report develops the ideal transfer function then introduces a component selection methodology and discusses its impact on noise and distortion. The impact of amplifie