%0 Journal Article %T Performance Analysis of Variation in Power Consumption and Frequency on Different Topologies of Ring VCO in 70 nm CMOS Technology %A Shitesh Tiwari %A Parag Parandkar %A Sumant Katiyal %J BVICAM's International Journal of Information Technology %D 2012 %I Bharati Vidyapeeth's Institute of Computer Applications and Management %X The proposed work describes the performance evaluation ofdifferent types of ring oscillator Voltage Controlled Oscillatortopologies on the basis of two characteristic parameters powerand frequency in 70 nm CMOS technology. The varioustopologies analyzed include Current Starved VCO, VCO withGates of PMOS Transistor Grounded, VCO with PMOS DiodeConnected, VCO with NMOS Diode Connected, VCO withvoltage applied to both PMOS and NMOS Transistor.Simulation of different parameters of ring oscillator VCO iscarried out on Tanner tool Version 13. VCO topologies areevaluated on the basis of frequency and power consumption bytaking lower supply voltage of 1.2 V. Performance evaluationand comparison of different topologies results in minimumpower consumption of 0.57 uW by Current Starved VCOtopology and maximum operating frequency of 0.57 MHz byVCO with Gates of PMOS Transistor Grounded. %K Current Starved VCO %K VCO With Gates of PMOS Transistors Grounded %K VCO With PMOS Transistors Diode Connected %K VCO With NMOS Transistors Diode Connected %K VCO With Voltage Applied To Both PMOS And NMOS Transistors %U http://www.bvicam.ac.in/bijit/Downloads/pdf/Issue8/01.pdf