An integrable temperature-insensitive gm-RC quadrature oscillator

Kumwachara, Kiattisak; Surakampontorn, Wanlop

doi:10.1080/0014184032000159363

An integrable temperature-insensitive gm-RC quadrature oscillator

Author(s)

Kumwachara, Kiattisak

Surakampontorn, Wanlop

Date Issued

September 1, 2003

Type

Article

DOI

10.1080/0014184032000159363

Abstract

A novel g^m-RC quadrature oscillator using operational transconductance amplifiers (OTAs) and grounded passive elements is proposed. The circuit provides two quadrature outputs of equal magnitude and the oscillation frequency is insensitive to temperature. The oscillation frequency can be linearly and electronically controlled without affecting the condition of oscillation. The active ω0-sensitivity has been shown to be small. Experimental and simulation results that demonstrate the performance of the proposed oscillator are also included.

Citation

International Journal of Electronics, 90(9), 599-605, 2003