Title :
A low-distortion anti-aliasing/smoothing filter for sampled data integrated circuits
Author_Institution :
SGS-Thomson Microelectron., Grenoble, France
fDate :
10/1/1988 12:00:00 AM
Abstract :
The theory, the practical design, and the measurement results of a simple low-distortion continuous-time filter are discussed. The filter harmonic distortion and attenuation performances comply with the echo-cancelling MODEM specification. The circuit was designed in a conventional 4-μm p-well double-poly CMOS technology. Based on the Sallen and Key structure, the proposed configuration achieves a second-order Butterworth low-pass transfer function with a minimum silicon area and a low parametric sensitivity
Keywords :
CMOS integrated circuits; active filters; distributed parameter networks; low-pass filters; 4 micron; Sallen and Key structure; antialiasing filter; area; attenuation performances; continuous-time filter; double-poly CMOS technology; echo-cancelling MODEM specification; filter harmonic distortion; low parametric sensitivity; low-distortion; measurement results; practical design; sampled data integrated circuits; second-order Butterworth low-pass transfer function; smoothing filter; Attenuation; CMOS technology; Circuits; Distortion measurement; Echo cancellers; Filtering theory; Filters; Harmonic distortion; Modems; Smoothing methods;
Journal_Title :
Solid-State Circuits, IEEE Journal of
