Title :
A low-voltage floating-gate CMOS transconductance amplifier, and a spin-off quasi frequency tripler
Author :
Lomsdalen, Johannes Goplen ; Berg, Yngvar ; Jensen, Rene
Author_Institution :
Dept. of Inf., Oslo Univ., Norway
Abstract :
In this paper we present a method to increase linearity in simple UV-programmed floating gate MOS (FGUVMOS) transconductance amplifiers. This approach applies to circuits having sinh shaped output currents. By combining multiple output stages, we are able to reduce the non-linearity considerably, given certain conditions. As a result of using two output stages slightly different, we also present a frequency tripler, resulting from the same concept of theory.
Keywords :
CMOS analogue integrated circuits; frequency multipliers; harmonic distortion; linearisation techniques; operational amplifiers; programmable circuits; LV floating-gate CMOS amplifier; THD reduction; UV-programmed floating gate MOS amplifiers; frequency tripler; linearity improvement; linearization approach; low-voltage transconductance amplifier; multiple output stages; sinh shaped output currents; sinus-hyperbolic functions; total harmonic distortion; Circuits; Frequency; Gain; Informatics; Linearity; Nonlinear distortion; Transconductance;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010750
