Low Power Delta-Sigma ADC on Silicon-On-Sapphire
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Описание:
The technologically advancements of the chip fabrication and VLSI circuit design have propelled the concept of a system on chip. The unique architecture of the Delta-Sigma A/DC requiring both the modulator and the decimation filter on the same chip to reduce the power dissipation has directly benefited from these developments. The architectural advantage of the Delta-Sigma A/DC is its insensitivity to process variation allowing for resolution in excess of 20-bit by adjusting oversampling ratio, modulator order, and/or quantizer dimension. Moreover, recently available thin-film SOI/SOS processes provide excellent potential for circuit isolation and zero or negligible junction capacitors. The 2-3 times lower digital power consumption than the bulk processes and higher Q inductors of SOI/SOS attract applications in telecommunication and remote sensing areas, along with other applications that depend heavily on maintaining low power dissipation.Похожие книги
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