The antialiasing ARC-LPF with independent trimming of the main characteristics

A new structure of the active RC low-pass filter (LPF) is proposed. This scheme is recommended as a second-order link in more complicated antialiasing filters and spectrum limiters in the input circuits of analog-to-digital converters. It is shown that in the low-pass filter under consideration an independent trimming of the main characteristics, such as a pole frequency, a pole attenuation, and a DC current transfer ratio, is provided.