A CMOS time-to-digital converter based on a ring oscillator for a laser radar

被引：31
|
作者：
Nissinen, L [1 ]
Mäntyniemi, A [1 ]
Kostamovaara, J [1 ]
机构：
[1] Univ Oulu, Dept Elect & Informat Engn, Elect Lab, FIN-90014 Oulu, Finland
来源：
ESSCIRC 2003: PROCEEDINGS OF THE 29TH EUROPEAN SOLID-STATE CIRCUITS CONFERENCE | 2003年
关键词：
D O I：
10.1109/ESSCIRC.2003.1257174
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
An integrated ring oscillator based time-to-digital converter (TDC) for a pulsed time-of-flight laser rangefinder has been designed and tested. The time-to-digital conversion is based on counting the pulses of this eight-stage differential ring oscillator and additionally registering the state of its 16 phases at the arrival moment of the timing signals. The single-shot precision and the nonlinearity of the TDC are better than 78.5 ps and +/-37 ps, respectively and the current consumption of the time-to-digital converter is < 24 mA from a +3 V power supply. The time-to-digital converter was fabricated on the same chip with a receiver channel in a 0.35 mum CMOS process.
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页码：469 / 472
页数：4
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