Review Paper on the Noise Shaping Property of 4th order VCO based ADC by using Feedback Loop

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Paper Details

Paper Title

Review Paper on the Noise Shaping Property of 4th order VCO based ADC by using Feedback Loop

Authors

Abhishek Kumar Prajapati, Ayoush Johari, Dr. Soni Changlani

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Abstract

This paper presents the review of different order voltage control oscillator analog to digital converter (VCO-ADC) and their SNR calculation. The 4th-order Continuous Time(CT) delta-sigma VCO-ADC has been explored on a 0.13 µm CMOS with a measured performance of 81.2/78.1dB Signal to noise ratio(SNR)/Signal to noise distortion ratio(SNDR) over a 20 MHz bandwidth while consuming 87 mW from a 1.5 V supply and is occupying an active area of 0.45 mm2. The 4th order noise shaping which is achieved by putting the quantization error in the feedback loop eliminates the Kv non-linearity of the circuit. Noise shaping works by putting quantization error in the feedback loop Main purpose of noise shaping is to increase the SNR of the resultant signal.

Keywords- VCO-ADC, SNR, noise shaping, quantization error, Kv non-linearity.

Publication Details

Unique Identification Number - IJEDR1602005
Page Number(s) - 32-38
Pubished in - Volume 4 | Issue 2 | April 2016
DOI (Digital Object Identifier) -
Publisher - IJEDR (ISSN - 2321-9939)

Cite this Article

Abhishek Kumar Prajapati, Ayoush Johari, Dr. Soni Changlani, "Review Paper on the Noise Shaping Property of 4th order VCO based ADC by using Feedback Loop", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 2, pp.32-38, April 2016, Available at :http://www.ijedr.org/papers/IJEDR1602005.pdf

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