Only digital technology analog-to-digital converter circuit

Author

Farahat, Mohamed A. ; Farag, Fathi A. ; Elsimary, Hamed A.

Author_Institution

Dept. of Electron. & Commun., Zagazig Univ., Egypt

Volume

1

fYear

2003

fDate

27-30 Dec. 2003

Firstpage

178

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) (Watanabe et al., 1993, Arai and Ikeno, 1996 and Watanabe et al., 2003). 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 0.5μm CMOS parameters.

Keywords

CMOS digital integrated circuits; analogue-digital conversion; delays; voltage-controlled oscillators; 0.5 micron; CMOS time to digital converter; analog-to-digital converter circuit; digital technology; fully digital ADC; propagation delay time; ring gate delay; square wave voltage controlled oscillator; Analog-digital conversion; CMOS technology; Capacitors; Circuits; Delay lines; Inverters; Parasitic capacitance; Propagation delay; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003 IEEE 46th Midwest Symposium on

ISSN

1548-3746

Print_ISBN

0-7803-8294-3

Type

conf

DOI

10.1109/MWSCAS.2003.1562247

Filename

1562247