Title :
A delay line based CMOS time digitizer IC with 13 ps single-shot precision
Author :
Jansson, Jussi ; Mäntyniemi, Antti ; Kostamovaara, Juha
Author_Institution :
Dept. of Electr. & Inf. Eng., Oulu Univ., Finland
Abstract :
This paper introduces an integrated digital CMOS time-to-digital converter which measures time periods with picosecond-level resolution. The circuit was fabricated in a 0.35 μm standard digital CMOS process. 13 ps rms single-shot precision was achieved by using a counter and a two-level nested DLL interpolation. Interpolators, which divide the cycle time of the 145 MHz reference clock to 512 pieces, provided 13.5 ps LSB width. The temperature drift was below 0.05 ps/°C. The power consumption with a 3.3 V operating voltage was 55 mW.
Keywords :
CMOS digital integrated circuits; analogue-digital conversion; delay lines; delay lock loops; interpolation; 0.35 micron; 145 MHz; 3.3 V; 55 mW; CMOS time digitizer IC; delay line; digital CMOS; interpolators; picosecond-level resolution; single-shot precision; time-to-digital converter; two-level nested DLL interpolation; CMOS integrated circuits; CMOS process; Clocks; Counting circuits; Delay lines; Energy consumption; Integrated circuit measurements; Interpolation; Temperature; Time measurement;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465574
