A 20-Msample/s switched-capacitor finite-impulse-response filter using a transposed structure

Author

Rothenberg, Bret C. ; Lewis, Stephen H. ; Hurst, Paul J.

Author_Institution

Solid-State Circuits Res. Lab., California Univ., Davis, CA, USA

Volume

30

Issue

12

fYear

1995

fDate

12/1/1995 12:00:00 AM

Firstpage

1350

Lastpage

1356

Abstract

A programmable four-tap analog finite-impulse-response filter for use in a decision-feedback equalizer has been realized in a 2-μm double-poly CMOS process. It uses a modified transposed structure and double sampling to minimize power dissipation. Also, it uses programmable-gain sample-and-hold amplifiers with a constant feedback factor, input capacitance, and load to reduce the performance variation as a function of programming. The filter is fully differential, occupies an active area of 11.8 mm², and dissipates 56.5 mW

Keywords

CMOS analogue integrated circuits; FIR filters; decision feedback equalisers; programmable filters; switched capacitor filters; 2 micron; 56.5 mW; constant feedback factor; constant input capacitance; decision-feedback equalizer; double sampling; double-poly CMOS process; finite-impulse-response filter; fully differential type; programmable four-tap analog filter; programmable-gain S/H amplifiers; sample/hold amplifiers; switched-capacitor FIR filter; transposed structure; CMOS process; CMOS technology; Capacitance; Decision feedback equalizers; Finite impulse response filter; Magnetic separation; Operational amplifiers; Power dissipation; Prototypes; Sampling methods;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.482161

Filename

482161