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http://dx.doi.org/10.6109/jkiice.2012.16.4.799

Temperature Stable Time-to-Digital Converter  

Choi, Jin-Ho (부산외국어대학교)
Abstract
To converter time information to digital information Time-to-Digital Converter(TDC) is designed by using analog delay elements. To obtain the temperature stable characteristics the circuit is designed and the operation of the designed circuit is confirmed by HSPICE. The characteristics variation of the designed delay element with temperature is from -0.18% to 0.126% compared to room temperature characteristics when the temperature is varied from $-20^{\circ}C$ tp $70^{\circ}C$. Time difference is from -0.18% to 0.12% compared to room temperature characteristic when the temperature is varied from $-20^{\circ}C$ tp $70^{\circ}C$. The time difference is simulated when the digital output is 15. However the time difference is from -1.09% to 1.28% in the TDC using temperature non-stable analog delay elements.
Keywords
signal conversion; time-to-digital converter; delay element; temperature characteristics;
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