Title :
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
fDate :
7/1/1993 12:00:00 AM
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;
Journal_Title :
Solid-State Circuits, IEEE Journal of
