Time-to-Digital Converter based on an On-chip Voltage Reference Locked Ring Oscillator

2006 ◽  
Author(s):  
Ilkka Nissinen
Keyword(s):  
Ring Oscillator ◽  
Voltage Reference ◽  
Digital Converter ◽  
Time To Digital Converter ◽  
On Chip

A 15ps resolution time-to-digital converter with on-chip PLL counting for LiDAR multi-object sensors

2019 ◽  
Vol 92 ◽  
pp. 104614
Author(s):  
Jiangkun Duan ◽  
Maliang Liu ◽  
Zhangming Zhu ◽  
Yintang Yang
Keyword(s):  
Digital Converter ◽  
Resolution Time ◽  
Time To Digital Converter ◽  
On Chip

scholarly journals Radiation Assessment of a 15.6ps Single-Shot Time-to-Digital Converter in Terms of TID

Electronics ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 558 ◽  
Author(s):  
Bjorn Van Bockel ◽  
Jeffrey Prinzie ◽  
Paul Leroux
Keyword(s):  
Complementary Metal Oxide Semiconductor ◽  
Cmos Technology ◽  
Ring Oscillator ◽  
Oxide Semiconductor ◽  
Single Shot ◽  
Digital Converter ◽  
Time To Digital Converter ◽  
Pvt Variations ◽  
Radiation Tolerant ◽  
Radiation Measurements

This article presents a radiation tolerant single-shot time-to-digital converter (TDC) with a resolution of 15.6 ps, fabricated in a 65 nm complementary metal oxide semiconductor (CMOS) technology. The TDC is based on a multipath pseudo differential ring oscillator with reduced phase delay, without the need for calibration or interpolation. The ring oscillator is placed inside a Phase Locked Loop (PLL) to compensate for Process, Voltage and Temperature (PVT) variations- and variations due to ionizing radiation. Measurements to evaluate the performance of the TDC in terms of the total ionizing dose (TID) were done. Two different samples were irradiated up to a dose of 2.2 MGy SiO 2 while still maintaining a resolution of 15.6 ps. The TDC has a differential non-linearity (DNL) and integral non-linearity (INL) of 0.22 LSB rms and 0.34 LSB rms respectively.

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