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Only digital technology analog-to-digital converter circuit
Faculty
Science
Year:
2003
Type of Publication:
InProcceding
Pages:
Authors:
Farahat, MA, Farag, FA, Elsimary, HA
Journal:
IEEE
Volume:
Research Area:
Engineering; Telecommunications
ISSN
ISI:000234964300044
Keywords :
Only digital technology analog-to-digital converter circuit
Abstract:
In this paper we present a new analog-to-digital converter technique. The basic structure is completely implemented using the digital technology. The proposed ADC circuit is based on the CMOS Time to Digital Converter (TDC) {[}1, 2,3]. The ring gate delay is employed as a square wave voltage controlled oscillator (VCO). The VCO operation is based on the changing of the propagation delay time according to supply voltage variation. The proposed fully digital ADC is suitable for sensor applications. The proposed circuit is designed and simulated using 0.5 mu m CMOS parameters.
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