Design of a 15-MHz CMOS continuous-time filter with on-chip tuning

Autor: J.M. Khoury
Rok vydání: 1991
Předmět:
Zdroj: IEEE Journal of Solid-State Circuits. 26:1988-1997
ISSN: 0018-9200
DOI: 10.1109/4.104193
Popis: A fifth-order CMOS continuous-time Bessel filter with a tunable 6- to 15-MHz cutoff frequency is described. This fully balanced transconductance-capacitor (G/sub m/-C) leapfrog filter achieves a dynamic range of 55 dB while dissipating 96 mW in a 5-V 0.9- mu m CMOS process. The author reviews the disk drive application and filtering requirements, and explains why the G/sub m/-C continuous-time filtering approach was used. The on-chip master-slave tuning system uses a voltage-controlled oscillator (VCO). Experimental results are presented. >
Databáze: OpenAIRE