Title :
High-linear class AB transconductor for high-frequency applications
Author :
Giustolisi, G. ; Palmisano, G. ; Pennisi, S.
Author_Institution :
Catania Univ., Italy
Abstract :
A CMOS voltage to current converter is proposed which is based on a cross-coupled class AB topology. Thanks to its high-linearity and high-frequency performance, the circuit can be used in high-frequency applications such as mixers, IF amplifiers and filters, etc., where linearity is one of the most critical performance parameters. When the proposed circuit is compared with other voltage to current converters such as the source-coupled pair a much higher linearity is achieved at the same power consumption
Keywords :
CMOS analogue integrated circuits; circuit simulation; convertors; differential amplifiers; harmonic distortion; impedance matching; intermediate-frequency amplifiers; network topology; radiofrequency amplifiers; CMOS voltage to current converter; IF amplifiers; THD; circuit simulation; cross-coupled class AB topology; filters; high linearity; high-frequency applications; high-linear class AB transconductor; inherent impedance matching; mixers; power consumption; Circuit topology; Coupling circuits; Energy consumption; Filters; Impedance matching; Linearity; Power dissipation; Transconductance; Transconductors; Voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857390
