A SURVEY ON SIGMA DELTA MODULATION BASED ADC DESIGN
Keywords:
Sigma delta modulator, Over Sampling Rate, Signal to Noise Ratio, Dynamic Range, Quantization NoiseAbstract
Analog to digital conversion is one of the key challenges pertaining to digital communication systems. Although several analog to digital conversion schemes are at our disposal, yet most of them suffer from quantization noise and low accuracy. Sigma delta modulation is a technique that senses the noise effects in the digital signal and filters out the noise from the signal thereby rendering better accuracy and lesser noise effects in the recovered digital signal. This paper focuses on the basics of sigma delta modulation and provides insight into its working. It also provides the summary of the previous work done which paves the path for further research in system design.
