%0 Journal Article
%T Single-Resistance-Controlled Sinusoidal Oscillator Using Single VD-DIBA
%A K. L. Pushkar
%A D. R. Bhaskar
%A Dinesh Prasad
%J Active and Passive Electronic Components
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/971936
%X This paper presents a new single-resistance-controlled sinusoidal oscillator (SRCO). The proposed oscillator employs only one voltage differencing differential input buffered amplifier (VD-DIBA), two resistors, and two grounded capacitors. The proposed configuration offers the following advantageous features: (i) independent control of condition of oscillation and frequency of oscillation, (ii) low active and passive sensitivities, and (iii) a very good frequency stability. The validity of the proposed SRCO has been established by SPICE simulations using 0.35£¿¦Ìm MIETEC technology. 1. Introduction Realisation of oscillators and active filters has become important research area in analog circuit design. Recently, various modern active building blocks have been introduced in [1], and VD-DIBA is one of them which is emerging as a very flexible and versatile building block for analog signal processing and has been used earlier for realizing a number of functions. Single-resistance-controlled sinusoidal oscillators (SRCOs) play an important role in control systems, signal processing, communication, and instrumentation and measurement systems [2¨C4]. SRCOs employing different active building blocks have attracted considerable attention of the researchers due to their several advantages over traditional op-amp-based SRCOs; see [5¨C15] and the references cited therein. The applications, advantages, and usefulness of VD-DIBA have now been recognised in the realisation of first-order all-pass filter, in simulation of inductors and in the realisation of sinusoidal oscillator [16¨C18]. However, to the best of the knowledge and belief of the authors, none of the SRCOs using single VD-DIBA has yet been presented in the literature so far. Therefore, the purpose of this paper is to present a new SRCO using a single VD-DIBA along with a bare minimum number of four passive components. The proposed configuration offers (i) independent control of condition of oscillation and frequency of oscillation, (ii) low active and passive sensitivities, and (iii) a very good frequency stability. The workability of the proposed SRCO has been established by SPICE simulations using 0.35£¿¦Ìm MIETEC technology. 2. New Oscillator Configuration The schematic symbol and behavioral model of the VD-DIBA are shown in Figures 1(a) and 1(b), respectively. The model includes two controlled sources: the current source controlled by differential voltage , with the transconductance , and the voltage source controlled by differential voltage , with the unity voltage gain. The VD-DIBA can be described by
%U http://www.hindawi.com/journals/apec/2013/971936/