Journal title : International Journal of Computing and Digital Systems
Publisher : Deanship of Scientific Research
Print ISSN : 2210-142X
Page Number : 71-77
Journal volume : 2
Journal issue : 2
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Sigma-Delta (SD) analog to digital converters (ADCs) have several advantages over the nyquist rate type ADCs. The linearity over high dynamic range makes the SD ADCs an ideal choice for voice and precise instrumentation applications. The SD-ADC architecture is well established and analyzed [5, 6]. It is heavily based on digital processing and provides a high resolution, low noise output with very low analog implementation effort. The technique of sigma delta ADC is in practice from several decades. The feature of digital dominated design of SD-ADC makes it different from other types of ADCs. As the technologies are evolving, new realization methodologies are emerging for realizing SD-ADC. The conventional approach of realizing an ADC as a separate ASIC and providing the interface to digital IC (either Microprocessor or FPGA) for providing mixed signal processing platform has following limitations.
Ever-growing era of mobile and personal wireless networks, motivated research in several fields of engineering resulted in low power and low cost consumer products. the voice band ...
The sigma delta analog to digital converter (sd-adc) with passive analog components is presented. the digital blocks required for creating the samples with required sample rate and...