Title :
A 9-channel integrated time-to-digital converter with sub-nanosecond resolution
Author :
Mantyniemi, Antti ; Rahkonen, Timo ; Kostamovaara, Juha
Author_Institution :
Electron. Lab., Oulu Univ., Finland
Abstract :
An integrated 9-channel parallel time-to-digital converter circuit has been designed for a 3D imaging laser range-finding application. The measured single-shot resolution σ-value is 312 ps (4.7 cm) or better in the whole 960 ns (144 m) measurement range. With time interval averaging resolution better than 1 ps σ-value (0.15 mm) was measured in one channel without interference. The maximum measured interchannel interference is ±20 ps (±3 mm). The circuit was fabricated in an 0.8 μm CMOS process and it consumes 25 mA from a single 5 V supply
Keywords :
CMOS integrated circuits; adjacent channel interference; analogue-digital conversion; laser ranging; 0.8 micron; 25 mA; 312 ps to 960 ns; 3D imaging laser range-finding application; 4.7 cm to 144 m; 5 V; 9-channel parallel configuration; CMOS process; integrated time-to-digital converter; interchannel interference; subnanosecond resolution; Clocks; Computer aided software engineering; Counting circuits; Decoding; Delay effects; Delay lines; Flip-flops; Metastasis; Synchronization; Time measurement;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.666065
