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Abstract: A design of multi-bit multi-phase VCO based ADC is presented in this paper. Time-domain quantization is done to extract the benefit from continuous scale down of technology Three stage current starved ring VCO is implemented using single ended delay cell configuration. A different method is used to increase the linearity of VCO and to increase the resolution of ADC in feed forward architecture, multi-bit quantization is done.
Keywords: Multibitquantizer, noise shaping, oversampling delta–sigma A–D converter, voltage-controlled oscillator
DOI: https://doi.org/10.15623/ijret.2014.0303023