Title :
A time digitizer with interpolation based on time-to-voltage conversion
Author :
Räisänen-Ruotsalainen, Elvi ; Rahkonen, Timo ; Kostamovaara, Juha
Author_Institution :
Dept. of Electr. Eng., Oulu Univ., Finland
Abstract :
A time-to-digital converter (TDC) based on a main counter and two analog interpolators has been implemented. The clock frequency of the TDC is 100 MHz and the interpolators have been implemented with a time-to-voltage converter followed by a 10-bit A/D converter. According to test results, the single-shot resolution of the TDC is 30 ps (σ-value) and nonlinearity is less than ±10 ps when input time intervals range from 10 ns to 2.5 μs. Uncompensated temperature drift in the temperature range -35°C to +60°C was measured to be 150 ps including the temperature dependency of the reference clock
Keywords :
BiCMOS integrated circuits; analogue-digital conversion; interpolation; mixed analogue-digital integrated circuits; -35 to 60 C; 10 ns to 2.5 mus; 100 MHz; 30 ps; A/D converter; analog interpolators; clock frequency; counter; interpolation; reference clock; single-shot resolution; temperature dependency; time digitizer; time-to-voltage conversion; uncompensated temperature drift; Clocks; Counting circuits; Frequency measurement; Interpolation; Laser radar; Laser theory; Pulse measurements; Temperature dependence; Temperature distribution; 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.1997.666067
