A CCCS for high frequency filters

Author

Gálvez-Durand, Federico ; Caloba, Luiz ; de Queiroz, A.C.M.

Author_Institution

Programa de Engenharia Eletrica, Univ. Federal do Rio de Janeiro, Brazil

Volume

5

fYear

1994

fDate

30 May-2 Jun 1994

Firstpage

561

Abstract

In this paper we propose a novel CCCS with output conductance less than 10^-8 mhos and harmonic distortion less than 0.6% at 33 MHz, low sensitivity to mismatches and 0.7 mW power consumption when driven with ±2.5 V power, supplies. A high performance OTA (Operational Transconductance Amplifier) was designed using this CCCS and tested in a 10 MHz 5th order elliptic lowpass OTA-C filter fed with ±2.5 V. The filter THD was less than 1% for V_in=1V(pp) at the cutoff frequency in the 8 MHz to 12 MHz range

Keywords

active filters; elliptic filters; harmonic distortion; low-pass filters; operational amplifiers; 0.7 mW; 1E-8 mho; 2.5 V; 33 MHz; 8 to 12 MHz; CCCS; Operational Transconductance Amplifier; THD; elliptic lowpass OTA-C filter; harmonic distortion; high frequency filters; mismatch sensitivity; output conductance; power consumption; Circuit simulation; Cutoff frequency; Feedback circuits; Harmonic distortion; MOSFETs; Mirrors; Operational amplifiers; Power harmonic filters; Transconductance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-1915-X

Type

conf

DOI

10.1109/ISCAS.1994.409437

Filename

409437