Digitally programmable switched-current FIR filter for low-voltage applications

Author

Farag, F.A. ; Galup-Montoro, C. ; Schneider, M.C.

Author_Institution

Univ. Fed. de Santa Catarina, Florianopolis, Brazil

Volume

35

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

637

Lastpage

641

Abstract

In this paper, we describe a switched-current (SI) finite-impulse response (FIR) filter, suitable for equalizer architectures. The basic cell of the FIR filter is a SI sample-hold (S/H) circuit, appropriate for low-voltage operation. The programmability of the FIR filter structure is achieved via MOSFET-only current dividers. The FIR filter has been designed and implemented using a 0.8 /spl mu/m CMOS process and operates at a power-supply voltage of 2 V.

Keywords

CMOS integrated circuits; FIR filters; equalisers; low-power electronics; mixed analogue-digital integrated circuits; programmable filters; sample and hold circuits; switched current circuits; switched filters; 0.8 micron; 2 V; ASIC; MOSFET-only current dividers; SI FIR filter; SI sample-hold circuit; digitally programmable FIR filter; equalizer architectures; finite-impulse response filter; low-voltage applications; sample-hold circuit; switched-current FIR filter; Brazil Council; CMOS process; Capacitors; Equalizers; Finite impulse response filter; MOSFETs; Switches; Switching circuits; Telecommunication switching; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.839924

Filename

839924