A 3.3 V linear fully balanced CMOS operational transconductance amplifier for high-frequency applications

Author

Szczepanski, Stanislaw ; Koziel, Slawomir

Author_Institution

Fac. of Electron., Telecommun. & Informatics, Tech. Univ. Gdansk, Poland

fYear

2002

fDate

2002

Firstpage

38

Lastpage

41

Abstract

This paper describes a simple CMOS technique for realizing a linear, voltage tunable operational transconductance amplifier (OTA). The proposed circuit has been developed and simulated using the MOS 0.5 μm HP AMOS14TB process parameters with all MOS transistors operating in saturation. SPICE simulations show that the total harmonic distortion (THD) at 1.7 V_pp is less than 0.3% with dynamic range equal to 74 dB at power consumption of 2.9 mW from a single 3.3 V supply. As an example of application, two OTAs are used to design a four-quadrant analog multiplier.

Keywords

CMOS analogue integrated circuits; SPICE; analogue multipliers; circuit simulation; circuit tuning; differential amplifiers; harmonic distortion; low-power electronics; operational amplifiers; 0.5 micron; 2.9 mW; 3.3 V; CMOS; HP AMOS14TB process parameters; SPICE simulations; four-quadrant analog multiplier; high-frequency applications; linear fully balanced amplifier; operational transconductance amplifier; power consumption; total harmonic distortion; voltage tunable amplifier; CMOS technology; Circuit simulation; Dynamic range; MOSFETs; Operational amplifiers; SPICE; Total harmonic distortion; Transconductance; Tunable circuits and devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems for Communications, 2002. Proceedings. ICCSC '02. 1st IEEE International Conference on

Print_ISBN

5-7422-0260-1

Type

conf

DOI

10.1109/OCCSC.2002.1029039

Filename

1029039