A CMOS time-to-digital converter IC with half-nanosecond resolution by inverter-delay-time has been developed for measuring time intervals with a fully digital circuit. A new circuit 'ring-gate-delay' system using two revolution counters can make the area of the circuit far smaller than it would be without them. Accuracy is assured through digital processing with a 2 MHz crystal clock reference. A time resolution of 0.5 ns and a measurement range 0-2200 ns using 1.5 micron CMOS were confirmed.
Development of a time-to-digital converter IC for laser radar
Entwicklung eines Zeit-Digital-Wandler-IC für Laser-Radar
JSAE Review ; 19 , 2 ; 161-165
1998
5 Seiten, 11 Bilder, 1 Tabelle, 6 Quellen
Article (Journal)
English
Development of A Time-to-Digital Converter LSI for Laser Radar
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