Operational Transresistance Amplifier-Based Multiphase Sinusoidal Oscillators

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="586853.fig.008a" src="https://static.hindawi.com/articles/jece/volume-2011/586853/figures/586853.fig.008a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Output waveforms for <svg height="10.8125" id="M100" style="vertical-align:-0.10033pt" version="1.1" viewbox="0 0 40.299999 10.8125" width="40.299999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.8125)">
<g transform="translate(72,-63.35)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑛</tspan>
<tspan style="font-size: 12.50px; " x="9.6773224" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="25.88121" y="0">4</tspan>
</text>
</g>
</g>
</svg>, <svg height="13.8" id="M101" style="vertical-align:-2.34499pt" version="1.1" viewbox="0 0 63.349998 13.8" width="63.349998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.8)">
<g transform="translate(72,-60.96)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑓</tspan>
<tspan style="font-size: 12.50px; " x="10.402496" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.442884" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="28.694386" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="31.820135" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="38.071636" y="0">4</tspan>
<tspan style="font-size: 12.50px; " x="44.323135" y="0">6</tspan>
</text>
</g>
</g>
</svg> MHz</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="586853.fig.008b" src="https://static.hindawi.com/articles/jece/volume-2011/586853/figures/586853.fig.008b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Frequency error curve</td></tr></table></td></tr></table>

<table>Simulation results for circuit II.</table>

Journal of Electrical and Computer Engineering

fig8

Figure 8

Figure 8: Operational Transresistance Amplifier-Based Multiphase Sinusoidal Oscillators 