Design, optimization and fabrication of a tanh/sinh-type bipolar transconductor with maximum linearity

Author

Salazar, Ramón ; Finol, Jesus ; Sánchez, Francisco J García ; Ortiz-Conde, Adelmo

Author_Institution

Laboratorio de Electronica del Estado Solido, Univ. Simon Bolivar, Caracas, Venezuela

fYear

2002

fDate

6/24/1905 12:00:00 AM

Abstract

We have designed, optimized and fabricated a bipolar transconductor with maximum static transfer function linearity. The optimization was based on an analytic function that corresponds to the integral nonlinearity of the circuit. This transconductor is composed of two parallel-connected non-linear blocks: a hyperbolic tangent-type transconductor and hyperbolic sine-type transconductor. The transconductor was fabricated using 0.5 μm BiCMOS mixed-signal process. A minimum THD value of 0.2% was obtained with a 100 μs transconductance up to a maximum input voltage swing of 50 mV peak.

Keywords

BiCMOS integrated circuits; circuit optimisation; harmonic distortion; hyperbolic equations; integral equations; integrated circuit design; mixed analogue-digital integrated circuits; nonlinear network analysis; operational amplifiers; transfer functions; 0.5 micron; 100 muS; 50 mV; BiCMOS fabrication; BiCMOS mixed-signal process; THD; analytic function; hyperbolic sine-type transconductor; hyperbolic tangent-type transconductor; integral circuit nonlinearity; maximum linearity transconductor; optimization; parallel-connected nonlinear blocks; peak input voltage swing; static transfer function linearity; tanh/sinh-type bipolar transconductor; total harmonic distortion; transconductance; Active filters; Circuits; Design optimization; Differential amplifiers; Fabrication; Linearity; Transconductance; Transconductors; Transfer functions; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Systems, 2002. Proceedings of the Fourth IEEE International Caracas Conference on

Print_ISBN

0-7803-7380-4

Type

conf

DOI

10.1109/ICCDCS.2002.1004020

Filename

1004020