In
this work, a third-order quadrature oscillator circuit is presented using an
inverting current feedback operational amplifier (ICFOA), an active element
that has attracted considerable attention in recent years. The topology
consists of two ICFOA, three capacitors and three resistors. The proposed
quadrature oscillator topology obtained by, a second-order low-pass filter with
voltage mode, and a voltage-mode integrator with a cascaded closed loop. It has
been observed that the implemented system works with the PSPICE simulation
program and it overlaps with the theoretical results. The theoretical cut-off
frequency is 1.326MHz and the cut-off frequency measured after the simulation
is 1.350MHz. In the simulation, 0.35μm MOSIS parameter set and ICFOA CMOS
structure are used. The proposed third order quadrature oscillator power
consumption is 7.8mW.
Analog integrated circuits Quadrature oscillators Inverting current feedback operational amplifier
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | December 4, 2018 |
Published in Issue | Year 2018Issue: 4 |