A 2-μm CMOS fifth-order low-pass continuous-time filter for video-frequency applications

Author

Stefanelli, Bruno ; Kaiser, Andreas

Author_Institution

Inst. Superieur Electron. du Norde, CNRS, Lille, France

Volume

28

Issue

7

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

713

Lastpage

718

Abstract

A fifth-order elliptic low-pass continuous-time filter based on triode transconductors for applications in the video frequency range is presented. Fabricated in a standard 2-μm CMOS technology, the circuit occupies 6 mm² of silicon area including the automatic tuning circuitry. The filter achieves a 7-MHz cutoff frequency using a parasitic pole compensation scheme. The dynamic range is 40 dB and power consumption is 30 mW for a 5-V supply. A transconductor biasing strategy which allows a continuous tuning range for the cutoff frequency of one decade is presented

Keywords

CMOS integrated circuits; active filters; compensation; linear integrated circuits; low-pass filters; tuning; 2 micron; 30 mW; 5 V; 7 MHz; CMOS technology; Si; automatic tuning circuitry; continuous-time filter; cutoff frequency; dynamic range; fifth-order; low-pass; parasitic pole compensation; power consumption; transconductor biasing strategy; triode transconductors; video-frequency applications; CMOS technology; Circuit optimization; Cutoff frequency; Low pass filters; Network topology; RLC circuits; Transconductance; Transconductors; Tuning; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.222166

Filename

222166