Title :
New CMOS tunable transconductor for filtering applications
Author :
Pamisano, G. ; Pennisi, S.
Author_Institution :
Dipartimento Elettrico Elettronico e Sistemistico, Catania Univ., Italy
Abstract :
A CMOS high-performance transconductor useful for IC filtering applications is presented. It is based on a feedback source-follower configuration using a resistor to achieve linear voltage-to-current conversion. Tunability is attained through variable-gain current mirrors. A balanced integrator was designed in a 0.8-μm technology and simulations are given which show tunability over a factor of 20 and THD of at most 0.56% for a 300 mVpp input signal at 1 MHz
Keywords :
CMOS analogue integrated circuits; circuit tuning; continuous time filters; current mirrors; harmonic distortion; integrating circuits; 0.8 micron; 1 MHz; CMOS tunable transconductor; IC filtering applications; THD; balanced integrator; feedback source-follower configuration; filtering applications; linear voltage-to-current conversion; tunability; variable-gain current mirrors; Application specific integrated circuits; CMOS integrated circuits; CMOS technology; Feedback; Filtering; Mirrors; Resistors; Signal design; Transconductors; Voltage;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921824
